Search criteria
56 vulnerabilities
CVE-2026-14631 (GCVE-0-2026-14631)
Vulnerability from cvelistv5 – Published: 2026-07-03 17:23 – Updated: 2026-07-03 17:23
VLAI?
Title
webpack-dev-server vulnerable to denial of service via a malformed Host or Origin header
Summary
webpack-dev-server versions 5.2.5 and earlier terminate the whole Node.js process when an unauthenticated peer sends either a normal HTTP request with a malformed Host header or a WebSocket upgrade to the default /ws endpoint with a malformed Origin header. The malformed value causes an uncaught exception in the host-validation path and crashes the dev server. Impact is limited to availability of the development server, no data disclosure, no code execution. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: keep the dev server bound to localhost (the default) and do not expose it to untrusted networks.
Severity ?
5.3 (Medium)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| webpack-dev-server | webpack-dev-server |
Affected:
0 , < 5.2.6
(semver)
Unaffected: 5.2.6 (semver) |
Credits
Str1ckl4nd
bjohansebas
UlisesGascon
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CVE-2026-14620 (GCVE-0-2026-14620)
Vulnerability from cvelistv5 – Published: 2026-07-03 17:00 – Updated: 2026-07-03 17:00
VLAI?
Title
webpack-dev-server vulnerable to cross-site request forgery via internal developer endpoints
Summary
webpack-dev-server versions 5.2.5 and earlier expose two internal developer endpoints, /webpack-dev-server/open-editor and /webpack-dev-server/invalidate, that perform state-changing actions on any GET request without verifying that the request originated from the dev server's own page. Any website a developer visits while the dev server is running can trigger these endpoints cross-origin with no interaction beyond the visit. An attacker can open an arbitrary existing local file in the developer's editor, including files outside the project root, and repeated requests can spawn editor processes and force recompilations that degrade the developer's machine. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: none.
Severity ?
4.7 (Medium)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| webpack-dev-server | webpack-dev-server |
Affected:
0 , < 5.2.6
(semver)
Unaffected: 5.2.6 (semver) |
Credits
Pig-Tail
bjohansebas
UlisesGascon
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CVE-2026-14181 (GCVE-0-2026-14181)
Vulnerability from cvelistv5 – Published: 2026-07-01 11:42 – Updated: 2026-07-01 12:05
VLAI?
Title
@fastify/middie standalone engine vulnerable to Denial of Service via malformed percent-encoded paths
Summary
@fastify/middie versions 9.1.0 through 9.3.2 fail to guard the URL normalization step used by the standalone engine when incoming request paths contain malformed percent-encoded sequences. Inputs such as an incomplete percent escape or a truncated multibyte sequence cause the underlying decoder to throw synchronously, and the exception escapes the middie normalize step and terminates the Node.js process. The bypass affects applications that call middie.run directly on the standalone engine API, causing an immediate denial of service for all connected clients until restart. Applications using the Fastify plugin path are not affected because Fastifys error handler catches the exception. Patches: upgrade to @fastify/middie 9.3.3. Workarounds: migrate from the standalone engine API to the Fastify plugin path, where the framework error handler catches the exception.
Severity ?
7.5 (High)
CWE
- CWE-248 - Uncaught Exception
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| @fastify/middie | @fastify/middie |
Affected:
9.1.0 , < 9.3.3
(semver)
Unaffected: 9.3.3 (semver) |
Credits
Jvr2022
mcollina
UlisesGascon
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CVE-2026-14198 (GCVE-0-2026-14198)
Vulnerability from cvelistv5 – Published: 2026-07-01 11:29 – Updated: 2026-07-01 12:10
VLAI?
Title
@fastify/middie vulnerable to authorization bypass via encoded slash in path parameter values
Summary
@fastify/middie versions 9.1.0 through 9.3.2 decode the encoded slash %2F inside path parameter values before matching middleware paths, while Fastify's underlying router preserves the encoding during route lookup. The two layers disagree on the canonical request path, so the middleware fails to match a URL that the route handler does match. When middleware is used for authentication, authorization, rate limiting, or auditing on parameterized paths, an attacker can reach the protected handler by sending a single crafted URL with an encoded slash in the parameter position. The bypass is HTTP method agnostic and requires no authentication or special preconditions. Patches: upgrade to @fastify/middie 9.3.3. Workarounds: avoid parameterized middleware paths for security decisions, or enforce authentication at the route handler or via a Fastify hook that runs after the router has resolved the request.
Severity ?
9.1 (Critical)
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| @fastify/middie | @fastify/middie |
Affected:
9.1.0 , < 9.3.3
(semver)
Unaffected: 9.3.3 (semver) |
Credits
Jvr2022
mcollina
UlisesGascon
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CVE-2026-6556 (GCVE-0-2026-6556)
Vulnerability from cvelistv5 – Published: 2026-06-30 12:48 – Updated: 2026-06-30 13:30
VLAI?
Title
@fastify/express vulnerable to middleware bypass via non-string mount paths in prefixed plugins
Summary
@fastify/express versions 4.0.6 and earlier only rewrite the plugin prefix for middleware mount paths when the path argument is a string. Non-string mount paths (arrays of paths and regular expressions) are left unprefixed inside prefixed plugin scopes, so middleware registered with those forms does not match the actual prefixed request path. Applications that use path-scoped middleware for authentication, authorization, rate limiting, or auditing on routes inside a prefixed scope can be bypassed by sending a request to the prefixed route, because Fastify still matches the route but the middleware is skipped. Patches: upgrade to @fastify/express 4.0.7. Workarounds: use string mount paths instead of arrays or regular expressions in prefixed plugins, or register one use call per path.
Severity ?
9.1 (Critical)
CWE
- CWE-285 - Improper Authorization
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| @fastify/express | @fastify/express |
Affected:
0 , < 4.0.7
(semver)
Unaffected: 4.0.7 (semver) |
Credits
Jvr2022
UlisesGascon
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CVE-2026-13676 (GCVE-0-2026-13676)
Vulnerability from cvelistv5 – Published: 2026-06-29 13:22 – Updated: 2026-07-02 12:05
VLAI?
Title
fast-uri vulnerable to host confusion via failed IDN canonicalization
Summary
fast-uri versions 2.3.1 through 3.1.2 and 4.0.0 fail to canonicalize Unicode (IDN) hostnames for HTTP-family URLs. The IDN conversion path calls a helper that does not exist on the global URL constructor, silently leaving the host in its original Unicode form while normalize() and equal() still return values that differ from a WHATWG-compatible URL parser. Applications that use fast-uri to enforce host-based policy (denylists, loopback filtering, redirect validation, outbound proxy routing) before passing the same URL to Node's URL or fetch can be bypassed when the two implementations resolve the same input to different hosts. Patches: upgrade to fast-uri 3.1.3 for the 3.x line or 4.0.1 for the 4.x line. Workarounds: enforce host policy using the same URL parser used for the actual request, or reject non-ASCII hosts before policy checks.
Severity ?
7.5 (High)
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
Impacted products
Credits
celinke97
UlisesGascon
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CVE-2026-11525 (GCVE-0-2026-11525)
Vulnerability from cvelistv5 – Published: 2026-06-17 17:31 – Updated: 2026-06-17 17:54
VLAI?
Title
undici vulnerable to Set-Cookie SameSite attribute downgrade via permissive substring matching
Summary
Impact:
When undici parses a Set-Cookie header, it accepts any SameSite attribute value that contains Strict, Lax, or None as a substring, rather than the case-insensitive exact match specified by RFC 6265. Non-spec values are silently mapped to one of the three standard tokens. For example, SameSite=NoneOfYourBusiness is parsed as None (the most permissive setting), and SameSite=StrictLax is parsed as Lax (a downgrade from Strict).
Affected applications are those that consume Set-Cookie headers from server responses (for example via undici's fetch or proxy code paths) and then forward or rely on the parsed sameSite attribute. A malicious or non-compliant server can coerce the consumer's view of a cookie's SameSite policy to a weaker value, silently degrading the SameSite enforcement the cookie is supposed to provide.
This was introduced in undici 5.15.0 when the cookies feature was added.
Patches:
Upgrade to undici v6.26.0, v7.28.0 or v8.5.0.
Workarounds:
After parsing a Set-Cookie header, validate that the resulting sameSite attribute is one of 'Strict', 'Lax', or 'None' (exact, case-insensitive) before forwarding or relying on it.
Severity ?
CWE
- CWE-183 - Permissive List of Allowed Inputs
Assigner
References
Impacted products
Credits
UlisesGascon
KhafraDev
mcollina
tndud042713
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CVE-2026-6733 (GCVE-0-2026-6733)
Vulnerability from cvelistv5 – Published: 2026-06-17 17:14 – Updated: 2026-06-17 18:30
VLAI?
Title
undici vulnerable to HTTP response queue poisoning via keep-alive socket reuse
Summary
Impact:
Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it associates the injected response with the new request, causing responses to be delivered to the wrong requests.
This requires an attacker-controlled or compromised upstream HTTP/1.1 server and keep-alive connection reuse.
Patches:
Upgrade to undici v6.26.0, v7.28.0 or v8.5.0.
Workarounds:
Disable keep-alive connection reuse by setting keepAliveTimeout: 0 on the Client or Pool.
Severity ?
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
Impacted products
Credits
mcollina
UlisesGascon
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CVE-2026-9678 (GCVE-0-2026-9678)
Vulnerability from cvelistv5 – Published: 2026-06-17 17:04 – Updated: 2026-06-17 18:05
VLAI?
Title
undici vulnerable to cross-user information disclosure via shared cache whitespace bypass
Summary
Impact:
Undici's cache interceptor incorrectly classifies some responses as cacheable when the upstream Cache-Control header uses whitespace-padded qualified private or no-cache field names such as private=" authorization" or no-cache="\tauthorization". The parser preserves the surrounding whitespace, so later comparisons against the literal authorization field name fail and the response is stored.
In shared-cache mode, this allows a response containing one user's authenticated data to be served from cache to a subsequent caller, including an unauthenticated caller, when both requests resolve to the same cache key.
Affected applications are those that explicitly enable the cache interceptor (interceptors.cache()) in shared mode, forward Authorization headers upstream, and receive cacheable responses with non-canonical qualified private or no-cache directives.
Patches:
Upgrade to undici v7.28.0 or v8.5.0.
Workarounds:
If upgrade is not immediately possible, disable shared-cache mode for traffic that includes Authorization headers, avoid caching responses to authenticated requests, or add Vary: Authorization upstream.
Severity ?
5.9 (Medium)
CWE
- CWE-524 - Use of Cache Containing Sensitive Information
Assigner
References
Impacted products
Credits
mcollina
UlisesGascon
AndrewMohawk
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CVE-2026-9679 (GCVE-0-2026-9679)
Vulnerability from cvelistv5 – Published: 2026-06-17 16:56 – Updated: 2026-06-23 16:12
VLAI?
Title
undici vulnerable to HTTP header injection via Set-Cookie percent-decoding
Summary
Impact:
undici's cookie parser in parseSetCookie percent-decodes cookie values via qsUnescape, turning encoded sequences like %0D%0A, %00, %3B, and %3D into their literal byte equivalents. RFC 6265 §5.4 does not specify any decoding and browsers do not decode either.
Applications that parse a Set-Cookie header and then forward the parsed value into a response header (proxies, middleware, SSR frameworks) become vulnerable to HTTP response header injection: an attacker-controlled upstream can inject arbitrary Set-Cookie, Location, or Cache-Control headers into the application's downstream response, enabling session fixation, open redirect, or cache poisoning.
Affected applications are those that use undici's cookie parsing (parseSetCookie, parseCookie, getSetCookies) and forward the parsed cookie value into a response header.
This was introduced in undici 7.0.0 via PR #3789.
Patches:
Upgrade to undici v6.26.0, v7.28.0 or v8.5.0.
Workarounds:
If upgrade is not immediately possible, do not forward values returned by parseSetCookie/parseCookie/getSetCookies directly into response headers; sanitize the value first to strip or reject CR, LF, NUL, ;, and = bytes.
Severity ?
5.9 (Medium)
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
Impacted products
Credits
tndud042713
mcollina
KhafraDev
UlisesGascon
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CVE-2026-9697 (GCVE-0-2026-9697)
Vulnerability from cvelistv5 – Published: 2026-06-17 16:46 – Updated: 2026-07-02 12:05
VLAI?
Title
undici vulnerable to TLS certificate validation bypass via dropped requestTls in SOCKS5 ProxyAgent
Summary
Impact:
undici's ProxyAgent silently drops the requestTls option when configured with a SOCKS5 proxy URI (socks5:// or socks://). The target HTTPS connection through the SOCKS5 tunnel falls back to Node's default trust store, ignoring user-configured ca, cert, key, rejectUnauthorized, and servername settings.
Applications that pin to an internal or corporate CA via requestTls.ca will, when their proxy URI is SOCKS5, get the default Mozilla CA bundle as the trust anchor instead. Any cert signed by any publicly-trusted CA for the target hostname is accepted, breaking the intended pin and enabling MITM read and tamper of the HTTPS exchange.
Affected applications are those that use undici's ProxyAgent (or Socks5ProxyAgent directly) with SOCKS5 AND rely on requestTls for TLS scope restriction. The bug was introduced in undici 7.23.0 when SOCKS5 support was added.
Patches:
Upgrade to undici v7.28.0 or v8.5.0.
Workarounds:
No workaround is available within the SOCKS5 path. If a SOCKS5 proxy with TLS scope restriction is required and an upgrade is not yet possible, route the traffic through an HTTP-proxy ProxyAgent instead, where requestTls is honored correctly.
Severity ?
7.4 (High)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
Credits
tonghuaroot
UlisesGascon
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CVE-2026-6734 (GCVE-0-2026-6734)
Vulnerability from cvelistv5 – Published: 2026-06-17 16:36 – Updated: 2026-07-02 12:05
VLAI?
Title
undici vulnerable to cross-origin request routing via SOCKS5 proxy pool reuse
Summary
Impact:
When using Socks5ProxyAgent, undici reuses a single connection pool across different origins without verifying that the pool's origin matches the requested origin. All requests are dispatched through the pool connected to the first origin, regardless of the intended destination.
This causes cross-origin request routing: credentials and request data intended for origin B are sent to origin A, responses from the wrong origin are trusted, and HTTPS requests may be silently downgraded to HTTP.
Impacted users are applications that use Socks5ProxyAgent (directly or via setGlobalDispatcher) and make requests to more than one origin.
This was introduced in undici 7.23.0 via PR #4385 and affects all versions through 8.1.0.
Patches:
Upgrade to undici v7.26.0 or v8.2.0.
Workarounds:
Use a separate Socks5ProxyAgent instance per origin, or avoid using Socks5ProxyAgent with multiple origins.
Severity ?
7.5 (High)
CWE
- CWE-346 - Origin Validation Error
Assigner
References
Impacted products
Credits
ChALkeR
mcollina
UlisesGascon
deepview-autofix
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CVE-2026-9675 (GCVE-0-2026-9675)
Vulnerability from cvelistv5 – Published: 2026-06-17 16:20 – Updated: 2026-06-17 17:29
VLAI?
Title
undici WebSocket client vulnerable to denial of service via cumulative fragment bypass
Summary
Impact:
The undici WebSocket client enforces maxPayloadSize per-frame but does not enforce the cumulative size of fragmented uncompressed messages. A malicious WebSocket server can stream many small fragments that each pass per-frame validation but collectively exceed the configured limit, causing unbounded memory growth in the client process. The result is memory exhaustion and a denial of service.
Affected applications are those using the undici WebSocket client (new WebSocket(...)) that can be induced to connect to an attacker-controlled or compromised WebSocket endpoint.
This is a regression specific to undici 8.1.0. The 6.25.0 line shipped the equivalent cumulative check from the start and is unaffected. The 7.x line never had the maxPayloadSize feature and is also unaffected.
Patches:
Upgrade to undici >= 8.5.0.
Workarounds:
No workaround is available. The fix must be applied through an upgrade.
Severity ?
7.5 (High)
CWE
Assigner
References
Impacted products
Credits
mauriceng98
Str1ckl4nd
mcollina
UlisesGascon
lzhou1110
Zyy0530
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CVE-2026-12151 (GCVE-0-2026-12151)
Vulnerability from cvelistv5 – Published: 2026-06-17 16:05 – Updated: 2026-07-02 12:05
VLAI?
Title
undici WebSocket client vulnerable to denial of service via fragment count bypass
Summary
Impact:
The undici WebSocket client enforces maxPayloadSize on the cumulative byte count of fragments in a message but does not enforce a limit on the number of fragments. A malicious WebSocket server can stream many small or empty continuation frames that each pass per-frame and cumulative-size validation, collectively causing unbounded memory growth in the client process. The result is memory exhaustion and a denial of service.
Affected applications are those using the undici WebSocket client (new WebSocket(...)) or the WebSocketStream API that can be induced to connect to an attacker-controlled or compromised WebSocket endpoint.
All releases starting at undici 6.17.0 are affected.
Patches: Upgrade to undici >= 6.26.0, >= 7.28.0, or >= 8.5.0. Workarounds:
No workaround is available. The fix must be applied through an upgrade.
Severity ?
7.5 (High)
CWE
Assigner
References
Impacted products
Credits
lpinca
Nadav0077
UlisesGascon
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CVE-2026-9595 (GCVE-0-2026-9595)
Vulnerability from cvelistv5 – Published: 2026-06-15 15:00 – Updated: 2026-06-15 16:08
VLAI?
Title
webpack-dev-server vulnerable to HMR WebSocket interception via permissive user proxies
Summary
Impact: When a user-configured proxy on webpack-dev-server has a broad context (e.g. /) and ws: true, it also intercepts the dev server's own HMR WebSocket and forwards it to the proxy target. This leaks the browser's cookies and Origin header to the backend, bypasses the dev server's Host/Origin validation, and corrupts the HMR socket (both HMR and the proxy end up writing to the same socket).
Patches: Fixed in webpack-dev-server@5.2.5.
Workarounds: Scope user-defined proxy context to specific paths instead of /, or omit ws: true from the proxy entry when WebSocket forwarding is not required.
Severity ?
5.3 (Medium)
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| webpack-dev-server | webpack-dev-server |
Affected:
0 , < 5.2.5
(semver)
Unaffected: 5.2.5 (semver) |
Credits
bjohansebas
UlisesGascon
ajhyndman
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CVE-2026-5038 (GCVE-0-2026-5038)
Vulnerability from cvelistv5 – Published: 2026-06-15 14:23 – Updated: 2026-06-15 16:07
VLAI?
Title
multer vulnerable to Denial of Service via incomplete cleanup of aborted uploads
Summary
Impact: multer versions 2.0.0-alpha.1 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service when using diskStorage. Aborted or malformed multipart uploads leave orphaned partial files on disk because the Readable.pipe() call does not propagate the stream destroy signal to
the underlying fs.WriteStream. An attacker can exhaust disk space by triggering many aborted uploads, with no application bug required.
Patches: Users should upgrade to multer 2.2.0 (2.x line) or 3.0.0-alpha.2 (3.x prerelease). Both versions track in-flight write streams and clean them up on the abort path.
Workarounds: None.
Severity ?
5.3 (Medium)
CWE
- CWE-459 - Incomplete Cleanup
Assigner
References
Impacted products
Credits
yuki-matsuhashi
HamdaanAliQuatil
fasrm
UlisesGascon
bjohansebas
0xStraw-Hat
bhaswanthc
ByamB4
sbouabid-sec
DavidCarliez
JebeenLee
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CVE-2026-5079 (GCVE-0-2026-5079)
Vulnerability from cvelistv5 – Published: 2026-06-15 13:56 – Updated: 2026-06-15 16:00
VLAI?
Title
multer vulnerable to Denial of Service via deeply nested field names
Summary
Impact: multer versions 1.0.0 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service via deeply nested field names in multipart form data. The append-field dependency parses bracket notation in field names with no limit on nesting depth, allowing an attacker to force allocation of deeply nested object structures that consume CPU and memory. A single HTTP request with a crafted multipart body is sufficient to exploit this.
Patches: Users should upgrade to multer 2.2.0 (2.x line) or 3.0.0-alpha.2 (3.x prerelease) and configure the new limits.fieldNestingDepth option to the minimum depth their application requires.
Workarounds: Set limits.fields to a reasonable value to reduce the number of fields an attacker can send per request. This does not fully mitigate the issue but limits the impact.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Credits
tndud042713
UlisesGascon
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CVE-2026-10796 (GCVE-0-2026-10796)
Vulnerability from cvelistv5 – Published: 2026-06-04 17:02 – Updated: 2026-06-04 18:11
VLAI?
Title
nvm executes commands from a malicious Node.js mirror's version strings
Summary
nvm (Node Version Manager) through 0.40.4 executes arbitrary commands from version strings supplied by the configured Node.js/io.js mirror. Commands such as `nvm install` read the available versions from the mirror's index.tab and use the selected version, without sanitization, to build download URLs and shell/awk commands. Two sinks are affected by the same untrusted input: nvm_download() built a curl/wget command string and ran it with `eval`, so a version field containing command substitution (for example $(id)) was executed by the local shell; and nvm_get_checksum() interpolated the version-derived download slug into an awk program, so a crafted version could execute arbitrary commands via awk's system(). An attacker who controls the configured mirror, supplies mirror content to a user or CI on a non-default mirror, or machine-in-the-middles a non-TLS mirror can ∴ run arbitrary commands with the privileges of the user running nvm. The default mirror (https://nodejs.org over TLS) is not affected. Fixed on master (pending the next tagged release) by passing every argument as a literal argv element instead of using eval, by passing the value to awk as data via -v instead of interpolating it into the program, and by rejecting any version outside the Node.js/io.js version grammar before it is used.
Severity ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Credits
DavidCarliez reported the `nvm_download` eval sink
`nvm_get_checksum` `awk` sink was identified during remediation via an internal audit, fixed by ljharb
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CVE-2026-5078 (GCVE-0-2026-5078)
Vulnerability from cvelistv5 – Published: 2026-06-03 05:56 – Updated: 2026-06-03 13:19
VLAI?
Title
morgan vulnerable to Log Forging via unneutralized control characters in :remote-user
Summary
Impact: The morgan logging middleware's :remote-user token extracts the Basic auth username from the Authorization request header and writes it to the log stream without neutralizing control characters. An unauthenticated attacker can send a crafted Authorization Basic header containing CR or LF bytes to inject forged log lines, breaking the one-request-per-line structure of access logs and enabling log forgery against downstream log consumers. The built-in combined, common, default, and short formats are affected, as well as any custom format that references :remote-user. Affected versions: morgan 1.2.0 through 1.10.1. Patches: upgrade to morgan 1.11.0, which neutralizes control characters in the :remote-user token output. Workarounds: use a custom format string that does not include :remote-user.
Severity ?
5.3 (Medium)
CWE
- CWE-117 - Improper Output Neutralization for Logs
Assigner
References
Impacted products
Credits
Yuki Matsuhashi
Ulises Gascón
Jon Church
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CVE-2026-8162 (GCVE-0-2026-8162)
Vulnerability from cvelistv5 – Published: 2026-05-12 09:05 – Updated: 2026-05-12 12:33
VLAI?
Title
multiparty vulnerable to Denial of Service via Uncaught Exception in filename* parameter parsing
Summary
multiparty@4.2.3 and lower versions are vulnerable to denial of service via uncaught exception. By sending a multipart/form-data request with a Content-Disposition header whose filename* parameter contains a malformed percent-encoding, the parser invokes decodeURI on the value without try/catch. The resulting URIError propagates as an uncaught exception and crashes the process. Impact: any service accepting multipart uploads via multiparty is affected. Workarounds: none. Upgrade to multiparty@4.3.0 or higher.
Severity ?
7.5 (High)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| multiparty | multiparty |
Affected:
0 , ≤ 4.2.3
(semver)
Unaffected: 4.3.0 (semver) |
Credits
Byambadalai Sumiya
Blake Embrey
Ulises Gascón
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CVE-2026-8161 (GCVE-0-2026-8161)
Vulnerability from cvelistv5 – Published: 2026-05-12 08:50 – Updated: 2026-05-12 12:32
VLAI?
Title
multiparty vulnerable to Denial of Service via Prototype Pollution leading to Uncaught Exception
Summary
multiparty@4.2.3 and lower versions are vulnerable to denial of service via uncaught exception. By sending a multipart/form-data request with a field name that collides with an inherited Object.prototype property such as __proto__, constructor, or toString, the parser invokes .push() on the inherited prototype value rather than an array, throwing a TypeError that propagates as an uncaught exception and crashes the process. Impact: any service accepting multipart uploads via multiparty is affected. Workarounds: none. Upgrade to multiparty@4.3.0 or higher.
Severity ?
7.5 (High)
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| multiparty | multiparty |
Affected:
0 , ≤ 4.2.3
(semver)
Unaffected: 4.3.0 (semver) |
Credits
Ser0n-ath
Sebastian Beltran
kq5y
Byambadalai Sumiya
Blake Embrey
Ulises Gascón
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CVE-2026-8159 (GCVE-0-2026-8159)
Vulnerability from cvelistv5 – Published: 2026-05-12 08:35 – Updated: 2026-05-12 12:33
VLAI?
Title
multiparty vulnerable to ReDoS via filename parsing
Summary
multiparty@4.2.3 and lower versions are vulnerable to denial of service via regular expression backtracking in the Content-Disposition filename parameter parser. A crafted multipart upload with a long header value can cause regex matching to take seconds, blocking the event loop. Impact: any service accepting multipart uploads via multiparty is affected. Workarounds: limiting upload sizes at the proxy or gateway layer reduces but does not eliminate the attack surface, since a small header of around 8 KB is sufficient to trigger the vulnerable backtracking. Upgrade to multiparty@4.3.0 or higher.
Severity ?
7.5 (High)
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| multiparty | multiparty |
Affected:
0 , ≤ 4.2.3
(semver)
Unaffected: 4.3.0 (semver) |
Credits
aszx87410
Blake Embrey
Ulises Gascón
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CVE-2026-6402 (GCVE-0-2026-6402)
Vulnerability from cvelistv5 – Published: 2026-05-12 07:45 – Updated: 2026-05-12 13:00
VLAI?
Title
webpack-dev-server vulnerable to cross-origin source code exposure on non-HTTPS origins
Summary
webpack-dev-server versions up to and including 5.2.3 are vulnerable to cross-origin source code exposure when serving over a non-potentially trustworthy origin such as plain HTTP. The previous fix relied on the Sec-Fetch-Mode and Sec-Fetch-Site request headers, which browsers omit for non-trustworthy origins, allowing a malicious site to load the bundled source as a script and read it across origins. Impact: an attacker controlling a website visited by a developer running webpack-dev-server can recover the application source code when the dev server runs over HTTP at a guessable host and port. Chromium based browsers from Chrome 142 onward are not affected due to local network access restrictions. Upgrade to webpack-dev-server 5.2.4 or later, which sets Cross-Origin-Resource-Policy: same-origin on responses.
Severity ?
5.3 (Medium)
CWE
- CWE-749 - Exposed Dangerous Method or Function
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| webpack-dev-server | webpack-dev-server |
Affected:
0 , < 5.2.4
(semver)
Unaffected: 5.2.4 (semver) |
Credits
sapphi-red
Ulises Gascón
Sebastian Beltran
Alexander Akait
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CVE-2026-6322 (GCVE-0-2026-6322)
Vulnerability from cvelistv5 – Published: 2026-05-05 10:29 – Updated: 2026-07-03 12:05
VLAI?
Title
fast-uri vulnerable to host confusion via percent-encoded authority delimiters
Summary
fast-uri normalize() decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host that combined an allowed domain, an encoded at-sign, and a different domain was re-emitted with the at-sign as a raw userinfo separator, changing the URI's authority to the second domain. Applications that normalize untrusted URLs before host allowlist checks, redirect validation, or outbound request routing can be steered to a different authority than the input appeared to specify. Versions <= 3.1.1 are affected. Update to 3.1.2 or later.
Severity ?
7.5 (High)
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
Impacted products
Credits
Jvr
Matteo Collina
Ulises Gascón
KaKa
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CVE-2026-6321 (GCVE-0-2026-6321)
Vulnerability from cvelistv5 – Published: 2026-05-04 19:31 – Updated: 2026-07-02 12:05
VLAI?
Title
fast-uri vulnerable to path traversal via percent-encoded dot segments
Summary
fast-uri decoded percent-encoded path separators and dot segments before applying dot-segment removal in its normalize() and equal() functions. Encoded path data was treated like real slashes and parent-directory references, so distinct URIs could collapse onto the same normalized path. Applications that normalize or compare attacker-controlled URLs to enforce path-based policy can be bypassed, with a path that appears confined under an allowed prefix normalizing to a different location. Versions <= 3.1.0 are affected. Update to 3.1.1 or later.
Severity ?
7.5 (High)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Credits
Jvr
Matteo Collina
Ulises Gascón
KaKa
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CVE-2026-7768 (GCVE-0-2026-7768)
Vulnerability from cvelistv5 – Published: 2026-05-04 19:14 – Updated: 2026-05-04 19:50
VLAI?
Title
@fastify/accepts-serializer vulnerable to Denial of Service via Unbounded Accept Header Cache Growth
Summary
@fastify/accepts-serializer cached serializer-selection results keyed by the request Accept header without a size limit or eviction policy. A remote unauthenticated client could send many distinct but matching Accept header variants to make the cache grow unbounded, eventually exhausting the Node.js heap and crashing the process. Versions <= 6.0.3 are affected. Update to 6.0.4 or later, which bounds the cache via an LRU with a default size of 100 entries, configurable through the new cacheSize plugin option.
Severity ?
7.5 (High)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| @fastify/accepts-serializer | @fastify/accepts-serializer |
Affected:
0 , < 6.0.4
(semver)
Unaffected: 6.0.4 (semver) |
Credits
Yuki Matsuhashi
Ulises Gascón
Manuel Spigolon
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CVE-2026-33804 (GCVE-0-2026-33804)
Vulnerability from cvelistv5 – Published: 2026-04-16 13:56 – Updated: 2026-04-16 14:41
VLAI?
Title
@fastify/middie vulnerable to middleware bypass via deprecated ignoreDuplicateSlashes option
Summary
@fastify/middie versions 9.3.1 and earlier are vulnerable to middleware bypass when the deprecated Fastify ignoreDuplicateSlashes option is enabled. The middleware path matching logic does not account for duplicate slash normalization performed by Fastify's router, allowing requests with duplicate slashes to bypass middleware authentication and authorization checks. This only affects applications using the deprecated ignoreDuplicateSlashes option. Upgrade to @fastify/middie 9.3.2 to fix this issue. There are no workarounds other than disabling the ignoreDuplicateSlashes option.
Severity ?
7.4 (High)
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| @fastify/middie | @fastify/middie |
Affected:
0 , < 9.3.2
(semver)
Unaffected: 9.3.2 (semver) |
Credits
FredKSchott
mcollina
climba03003
UlisesGascon
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CVE-2026-6270 (GCVE-0-2026-6270)
Vulnerability from cvelistv5 – Published: 2026-04-16 13:44 – Updated: 2026-04-16 14:24
VLAI?
Title
@fastify/middie vulnerable to middleware authentication bypass in child plugin scopes
Summary
@fastify/middie versions 9.3.1 and earlier do not register inherited middleware directly on child plugin engine instances. When a Fastify application registers authentication middleware in a parent scope and then registers child plugins with @fastify/middie, the child scope does not inherit the parent middleware. This allows unauthenticated requests to reach routes defined in child plugin scopes, bypassing authentication and authorization checks. Upgrade to @fastify/middie 9.3.2 to fix this issue. There are no workarounds.
Severity ?
9.1 (Critical)
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| @fastify/middie | @fastify/middie |
Affected:
0 , < 9.3.2
(semver)
Unaffected: 9.3.2 (semver) |
Credits
FredKSchott
climba03003
UlisesGascon
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CVE-2026-6410 (GCVE-0-2026-6410)
Vulnerability from cvelistv5 – Published: 2026-04-16 13:29 – Updated: 2026-04-16 14:19
VLAI?
Title
@fastify/static vulnerable to path traversal in directory listing
Summary
@fastify/static versions 8.0.0 through 9.1.0 allow path traversal when directory listing is enabled via the list option. The dirList.path() function resolves directories outside the configured static root using path.join() without a containment check. A remote unauthenticated attacker can obtain directory listings for arbitrary directories accessible to the Node.js process, disclosing directory and file names. File contents are not disclosed. Upgrade to @fastify/static 9.1.1 to fix this issue. As a workaround, disable directory listing by removing the list option from the plugin configuration.
Severity ?
5.3 (Medium)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| @fastify/static | @fastify/static |
Affected:
8.0.0 , < 9.1.1
(semver)
Unaffected: 9.1.1 (semver) |
Credits
yuki-matsuhashi
mcollina
UlisesGascon
climba03003
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CVE-2026-6414 (GCVE-0-2026-6414)
Vulnerability from cvelistv5 – Published: 2026-04-16 13:09 – Updated: 2026-04-16 13:48
VLAI?
Title
@fastify/static vulnerable to route guard bypass via encoded path separators
Summary
@fastify/static versions 8.0.0 through 9.1.0 decode percent-encoded path separators (%2F) before filesystem resolution, while Fastify's router treats them as literal characters. This mismatch allows attackers to bypass route-based middleware or guards that protect files served by @fastify/static. For example, a route guard on a protected path can be circumvented by encoding the path separator in the URL. Upgrade to @fastify/static 9.1.1 to fix this issue. There are no workarounds.
Severity ?
5.9 (Medium)
CWE
- CWE-177 - Improper Handling of URL Encoding (Hex Encoding)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| @fastify/static | @fastify/static |
Affected:
8.0.0 , < 9.1.1
(semver)
Unaffected: 9.1.1 (semver) |
Credits
blakeembrey
mcollina
UlisesGascon
climba03003
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"url": "https://github.com/fastify/middie/security/advisories/GHSA-cxrg-g7r8-w69p"
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"url": "https://github.com/honojs/hono/security/advisories/GHSA-q5qw-h33p-qvwr"
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