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Vulnerability from cleanstart
Published
2026-06-10 00:46
Modified
2026-06-09 08:06
Summary
Internationalized Domain Names in Applications (IDNA) for Python provides support for Internationalized Domain Names in Applications (IDNA) and Unicode IDNA Compatibility Processing
Details
Multiple security vulnerabilities affect the apache-superset package. Internationalized Domain Names in Applications (IDNA) for Python provides support for Internationalized Domain Names in Applications (IDNA) and Unicode IDNA Compatibility Processing. See references for individual vulnerability details.
{
"affected": [
{
"package": {
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"name": "apache-superset"
},
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{
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{
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},
{
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}
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}
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}
],
"credits": [],
"database_specific": {},
"details": "Multiple security vulnerabilities affect the apache-superset package. Internationalized Domain Names in Applications (IDNA) for Python provides support for Internationalized Domain Names in Applications (IDNA) and Unicode IDNA Compatibility Processing. See references for individual vulnerability details.",
"id": "CLEANSTART-2026-EN66750",
"modified": "2026-06-09T08:06:55Z",
"published": "2026-06-10T00:46:54.779122Z",
"references": [
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"url": "https://osv.dev/vulnerability/CVE-2026-48522"
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"url": "https://osv.dev/vulnerability/CVE-2026-48525"
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25990"
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CVE-2026-48526 (GCVE-0-2026-48526)
Vulnerability from cvelistv5 – Published: 2026-05-28 15:09 – Updated: 2026-07-02 12:04
VLAI?
EPSS
Title
PyJWT: Public-key JWK accepted as HMAC secret enables forged HS256 tokens when mixed families are allowed
Summary
PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, when the verifier is decoding JSON Web Tokens, while supporting both asymmetric and HMAC algorithms, the library does not validate use of JSON Web Keys in HMAC algorithm, allowing attacker to use the issuer public key as the secret key for HMAC algorithm. This vulnerability is fixed in 2.13.0.
Severity ?
7.4 (High)
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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CVE-2026-42309 (GCVE-0-2026-42309)
Vulnerability from cvelistv5 – Published: 2026-05-09 04:08 – Updated: 2026-05-11 14:48
VLAI?
EPSS
Title
Pillow: Heap buffer overflow with nested list coordinates
Summary
Pillow is a Python imaging library. From version 11.2.1 to before version 12.2.0, passing nested lists as coordinates to APIs that accept coordinates such as ImagePath.Path, ImageDraw.ImageDraw.polygon and ImageDraw.ImageDraw.line could cause a heap buffer overflow, as nested lists were recursively unpacked beyond the allocated buffer. Coordinate lists are now validated to contain exactly two numeric coordinates. This issue has been patched in version 12.2.0.
Severity ?
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| python-pillow | Pillow |
Affected:
>= 11.2.1, < 12.2.0
|
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CVE-2026-42311 (GCVE-0-2026-42311)
Vulnerability from cvelistv5 – Published: 2026-05-09 04:11 – Updated: 2026-05-12 02:24
VLAI?
EPSS
Title
Pillow: OOB Write with Invalid PSD Tile Extents (Integer Overflow)
Summary
Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution. This issue has been patched in version 12.2.0.
Severity ?
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| python-pillow | Pillow |
Affected:
>= 10.3.0, < 12.2.0
|
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CVE-2026-40192 (GCVE-0-2026-40192)
Vulnerability from cvelistv5 – Published: 2026-04-15 22:53 – Updated: 2026-07-02 12:04
VLAI?
EPSS
Title
Pillow is vulnerable to a FITS GZIP decompression bomb
Summary
Pillow is a Python imaging library. Versions 10.3.0 through 12.1.1 did not limit the amount of GZIP-compressed data read when decoding a FITS image, making them vulnerable to decompression bomb attacks. A specially crafted FITS file could cause unbounded memory consumption, leading to denial of service (OOM crash or severe performance degradation). If users are unable to immediately upgrade, they should only open specific image formats, excluding FITS, as a workaround.
Severity ?
CWE
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| python-pillow | Pillow |
Affected:
>= 10.3.0, < 12.2.0
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CVE-2026-42308 (GCVE-0-2026-42308)
Vulnerability from cvelistv5 – Published: 2026-05-09 04:09 – Updated: 2026-05-11 15:03
VLAI?
EPSS
Title
Pillow: Integer overflow when processing fonts
Summary
Pillow is a Python imaging library. Prior to version 12.2.0, if a font advances for each glyph by an exceeding large amount, when Pillow keeps track of the current position, it may lead to an integer overflow. This issue has been patched in version 12.2.0.
Severity ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| python-pillow | Pillow |
Affected:
< 12.2.0
|
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CVE-2026-45409 (GCVE-0-2026-45409)
Vulnerability from cvelistv5 – Published: 2026-06-05 22:06 – Updated: 2026-06-08 16:34
VLAI?
EPSS
Title
Internationalized Domain Names in Applications (IDNA): Specially crafted inputs to idna.encode() can bypass CVE-2024-3651 fix
Summary
Internationalized Domain Names in Applications (IDNA) for Python provides support for Internationalized Domain Names in Applications (IDNA) and Unicode IDNA Compatibility Processing. In versions prior to 3.15, payloads such as `"\u0660" * N` or `"\u30fb" * N + "\u6f22"` utilize the `valid_contexto` function prior to length rejection, and for high values of `N` will take a long time to process. This is the same issue as CVE-2024-3651, however the original remediation in 2024 was not a complete fix. A specially crafted argument to the `idna.encode()` function could consume significant resources. This may lead to a denial-of-service. Starting in version 3.14, the function rejects long inputs as soon as practicable prior to any further processing to minimize resource consumption. In version 3.15, this approach was extended to lesser used alternate functions (i.e. per-label conversions and codec support). A workaround is available. Domain names cannot exceed 253 characters in length. If this length limit is enforced prior to passing the domain to the `idna.encode()` function, it should no longer consume significant resources. This is triggered by arbitrarily large inputs that would not occur in normal usage, but may be passed to the library assuming there is no preliminary input validation by the higher-level application.
Severity ?
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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CVE-2026-48525 (GCVE-0-2026-48525)
Vulnerability from cvelistv5 – Published: 2026-05-28 15:11 – Updated: 2026-06-23 15:54
VLAI?
EPSS
Title
PyJWT: Unauthenticated DoS via unbounded Base64URL decoding of unused payload segment in b64=false detached JWS
Summary
PyJWT is a JSON Web Token implementation in Python. From 2.8.0 to 2.12.1, when verifying detached JWS tokens using the unencoded-payload option ("b64": false, RFC 7797), PyJWT performs Base64URL decoding of the compact-serialization payload segment before enforcing the detached-payload rules. For b64=false, PyJWT later discards that decoded payload and replaces it with the caller-provided detached_payload. In practice, this turns the middle segment into an attacker-controlled “work amplifier”: a remote client can supply an arbitrarily large Base64URL payload segment that forces CPU work + memory allocations even if the signature is invalid. This creates an unauthenticated DoS vector against any endpoint that verifies detached JWS using PyJWT. This vulnerability is fixed in 2.13.0.
Severity ?
5.3 (Medium)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
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CVE-2026-25990 (GCVE-0-2026-25990)
Vulnerability from cvelistv5 – Published: 2026-02-11 20:53 – Updated: 2026-07-01 12:04
VLAI?
EPSS
Title
Pillow has an out-of-bounds write when loading PSD images
Summary
Pillow is a Python imaging library. From 10.3.0 to before 12.1.1, an out-of-bounds write may be triggered when loading a specially crafted PSD image. This vulnerability is fixed in 12.1.1.
Severity ?
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| python-pillow | Pillow |
Affected:
>= 10.3.0, < 12.1.1
|
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CVE-2026-48524 (GCVE-0-2026-48524)
Vulnerability from cvelistv5 – Published: 2026-05-28 15:07 – Updated: 2026-05-28 19:17
VLAI?
EPSS
Title
PyJWT: PyJWKClient unbounded JWKS endpoint requests via attacker-controlled kid values (DoS)
Summary
PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient.get_signing_key() forces a fresh HTTP request to the JWKS endpoint for every JWT with an unknown kid value, with no rate limiting. Since kid comes from the unverified token header, an attacker can trigger unlimited outbound requests. The vulnerability surfaces only when a JWKS fetch fails; an attacker can attempt to provoke that with sustained unknown-kid traffic, but the outcome depends on upstream JWKS-endpoint behavior (rate limiting, transient errors) which is beyond the attacker's control. This vulnerability is fixed in 2.13.0.
Severity ?
CWE
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
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CVE-2026-48522 (GCVE-0-2026-48522)
Vulnerability from cvelistv5 – Published: 2026-05-28 15:00 – Updated: 2026-06-02 15:47
VLAI?
EPSS
Title
PyJWKClient: missing scheme allowlist enables SSRF + token forgery via file://, ftp://, data: schemes
Summary
PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient passes its uri argument directly to urllib.request.urlopen() which uses Python stdlib's default OpenerDirector registering HTTPHandler, HTTPSHandler, FTPHandler, FileHandler, and DataHandler. There is currently no documented option to restrict which schemes PyJWKClient will fetch. If an application's jku URL ingestion path accepts attacker-influenced URLs (e.g., from JWT header, configuration file, OAuth flow parameter), the attacker can cause PyJWKClient to read arbitrary local files via file:// (SSRF on local filesystem), cause PyJWKClient to attempt FTP / data-URI fetches (broader SSRF surface), or forge tokens that PyJWT verifies as valid. The library does not directly return non-HTTP(S) URI contents to the attacker; the chained "plant a JWKS to forge tokens" scenario described in the original report requires additional application-layer flaws (attacker write access to a filesystem path, untrusted jku derivation) that this fix does not address. This vulnerability is fixed in 2.13.0.
Severity ?
4.2 (Medium)
CWE
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
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CVE-2026-42310 (GCVE-0-2026-42310)
Vulnerability from cvelistv5 – Published: 2026-05-09 04:10 – Updated: 2026-05-12 18:31
VLAI?
EPSS
Title
Pillow: PDF Parsing Trailer Infinite Loop (DoS)
Summary
Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive. This issue has been patched in version 12.2.0.
Severity ?
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| python-pillow | Pillow |
Affected:
>= 4.2.0, < 12.2.0
|
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GHSA-R73J-PQJ5-W3X7
Vulnerability from github – Published: 2026-05-04 20:19 – Updated: 2026-05-13 13:41
VLAI?
Summary
Pillow has a PDF Parsing Trailer Infinite Loop (DoS)
Details
Impact
An attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive.
Patches
Patched version: 12.2.0.
PdfParser (introduced in Pillow 4.2.0) follows Prev pointers in PDF trailers to read cross-reference sections. If a trailer's Prev pointer references an offset that has already been processed — either pointing to itself or forming a longer cycle — the parser enters an infinite loop. Pillow now tracks previously processed trailer offsets and raises an error if a cycle is detected.
Workarounds
Use any version but the affected versions: >= 4.2.0, < 12.2.0
Resources
- Fix: https://github.com/python-pillow/Pillow/pull/9519
Severity ?
5.5 (Medium)
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"modified": "2026-05-13T13:41:22Z",
"published": "2026-05-04T20:19:30Z",
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"url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-r73j-pqj5-w3x7"
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GHSA-WHJ4-6X5X-4V2J
Vulnerability from github – Published: 2026-04-13 19:22 – Updated: 2026-04-27 16:21
VLAI?
Summary
FITS GZIP decompression bomb in Pillow
Details
Impact
Pillow did not limit the amount of GZIP-compressed data read when decoding a FITS image, making it vulnerable to decompression bomb attacks. A specially crafted FITS file could cause unbounded memory consumption, leading to denial of service (OOM crash or severe performance degradation).
Patches
The amount of data read is now limited to the necessary amount. Fixed in Pillow 12.2.0 (PR #9521).
Workarounds
Avoid Pillow >= 10.3.0, < 12.2.0 Only open specific image formats, excluding FITS.
Severity ?
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"package": {
"ecosystem": "PyPI",
"name": "pillow"
},
"ranges": [
{
"events": [
{
"introduced": "10.3.0"
},
{
"fixed": "12.2.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-40192"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-13T19:22:35Z",
"nvd_published_at": "2026-04-15T23:16:10Z",
"severity": "HIGH"
},
"details": "### Impact\nPillow did not limit the amount of GZIP-compressed data read when decoding a FITS image, making it vulnerable to decompression bomb attacks. A specially crafted FITS file could cause unbounded memory consumption, leading to denial of service (OOM crash or severe performance degradation).\n\n### Patches\nThe amount of data read is now limited to the necessary amount.\nFixed in Pillow 12.2.0 (PR #9521).\n\n### Workarounds\nAvoid Pillow \u003e= 10.3.0, \u003c 12.2.0\nOnly open [specific image formats](https://pillow.readthedocs.io/en/stable/releasenotes/8.0.0.html#image-open-add-formats-parameter), excluding FITS.",
"id": "GHSA-whj4-6x5x-4v2j",
"modified": "2026-04-27T16:21:39Z",
"published": "2026-04-13T19:22:35Z",
"references": [
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"url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-whj4-6x5x-4v2j"
},
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"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40192"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/pull/9521"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/commit/3cb854e8b2bab43f40e342e665f9340d861aa628"
},
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"url": "https://github.com/python-pillow/Pillow"
},
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"type": "WEB",
"url": "https://pillow.readthedocs.io/en/stable/releasenotes/12.2.0.html#prevent-fits-decompression-bomb"
}
],
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{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "FITS GZIP decompression bomb in Pillow"
}
GHSA-CFH3-3JMP-RVHC
Vulnerability from github – Published: 2026-02-11 14:22 – Updated: 2026-04-30 20:14
VLAI?
Summary
Pillow affected by out-of-bounds write when loading PSD images
Details
Impact
An out-of-bounds write may be triggered when loading a specially crafted PSD image. Pillow >= 10.3.0 users are affected.
Patches
Pillow 12.1.1 will be released shortly with a fix for this.
Workarounds
Image.open() has a formats parameter that can be used to prevent PSD images from being opened.
References
Pillow 12.1.1 will add release notes at https://pillow.readthedocs.io/en/stable/releasenotes/index.html
Severity ?
{
"affected": [
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"package": {
"ecosystem": "PyPI",
"name": "pillow"
},
"ranges": [
{
"events": [
{
"introduced": "10.3.0"
},
{
"fixed": "12.1.1"
}
],
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}
]
}
],
"aliases": [
"CVE-2026-25990"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2026-02-11T14:22:50Z",
"nvd_published_at": "2026-02-11T21:16:20Z",
"severity": "HIGH"
},
"details": "### Impact\nAn out-of-bounds write may be triggered when loading a specially crafted PSD image. Pillow \u003e= 10.3.0 users are affected.\n\n### Patches\nPillow 12.1.1 will be released shortly with a fix for this.\n\n### Workarounds\n`Image.open()` has a `formats` parameter that can be used to prevent PSD images from being opened.\n\n### References\nPillow 12.1.1 will add release notes at https://pillow.readthedocs.io/en/stable/releasenotes/index.html",
"id": "GHSA-cfh3-3jmp-rvhc",
"modified": "2026-04-30T20:14:47Z",
"published": "2026-02-11T14:22:50Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-cfh3-3jmp-rvhc"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25990"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/pull/9427"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/commit/54ba4db542ad3c7b918812a4e2d69c27735a3199"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/commit/9000313cc5d4a31bdcdd6d7f0781101abab553aa"
},
{
"type": "PACKAGE",
"url": "https://github.com/python-pillow/Pillow"
},
{
"type": "WEB",
"url": "https://pillow.readthedocs.io/en/stable/releasenotes/12.1.1.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Pillow affected by out-of-bounds write when loading PSD images"
}
GHSA-WJX4-4JCJ-G98J
Vulnerability from github – Published: 2026-05-04 20:18 – Updated: 2026-06-08 23:40
VLAI?
Summary
Pillow has an integer overflow when processing fonts
Details
If a font advances for each glyph by an exceeding large amount, when Pillow keeps track of the current position, it may lead to an integer overflow. This has been fixed.
Severity ?
5.5 (Medium)
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"aliases": [
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"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-04T20:18:45Z",
"nvd_published_at": "2026-05-09T06:16:09Z",
"severity": "MODERATE"
},
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"id": "GHSA-wjx4-4jcj-g98j",
"modified": "2026-06-08T23:40:21Z",
"published": "2026-05-04T20:18:45Z",
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{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42308"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2026-165.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/python-pillow/Pillow"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/releases/tag/12.2.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Pillow has an integer overflow when processing fonts"
}
GHSA-5XMW-VC9V-4WF2
Vulnerability from github – Published: 2026-05-04 20:18 – Updated: 2026-05-13 13:39
VLAI?
Summary
Pillow has a heap buffer overflow with nested list coordinates
Details
Passing nested lists as coordinates to APIs that accept coordinates such as ImagePath.Path, ImageDraw.ImageDraw.polygon and ImageDraw.ImageDraw.line could cause a heap buffer overflow, as nested lists were recursively unpacked beyond the allocated buffer. Coordinate lists are now validated to contain exactly two numeric coordinates. This was introduced in Pillow 11.2.1.
Severity ?
5.5 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pillow"
},
"ranges": [
{
"events": [
{
"introduced": "11.2.1"
},
{
"fixed": "12.2.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-42309"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-04T20:18:27Z",
"nvd_published_at": "2026-05-09T06:16:10Z",
"severity": "MODERATE"
},
"details": "Passing nested lists as coordinates to APIs that accept coordinates such as `ImagePath.Path`, `ImageDraw.ImageDraw.polygon` and `ImageDraw.ImageDraw.line` could cause a heap buffer overflow, as nested lists were recursively unpacked beyond the allocated buffer. Coordinate lists are now validated to contain exactly two numeric coordinates. This was introduced in Pillow 11.2.1.",
"id": "GHSA-5xmw-vc9v-4wf2",
"modified": "2026-05-13T13:39:39Z",
"published": "2026-05-04T20:18:27Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-5xmw-vc9v-4wf2"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42309"
},
{
"type": "PACKAGE",
"url": "https://github.com/python-pillow/Pillow"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/releases/tag/12.2.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Pillow has a heap buffer overflow with nested list coordinates"
}
GHSA-65PC-FJ4G-8RJX
Vulnerability from github – Published: 2026-05-19 14:34 – Updated: 2026-06-09 11:57
VLAI?
Summary
Internationalized Domain Names in Applications (IDNA): Specially crafted inputs to idna.encode() can bypass CVE-2024-3651 fix
Details
This is the same issue as CVE-2024-3651, however the original remediation in 2024 was not a complete fix. Payloads such as "\u0660" * N or "\u30fb" * N + "\u6f22" utilize the valid_contexto function prior to length rejection, and for high values of N will take a long time to process.
Impact
A specially crafted argument to the idna.encode() function could consume significant resources. This may lead to a denial-of-service.
Patches
Starting in version 3.14, the function rejects long inputs as soon as practicable prior to any further processing to minimize resource consumption. In version 3.15, this approach was extended to lesser used alternate functions (i.e. per-label conversions and codec support).
Workarounds
Domain names cannot exceed 253 characters in length, if this length limit is enforced prior to passing the domain to the idna.encode() function it should no longer consume significant resources. This is triggered by arbitrarily large inputs that would not occur in normal usage, but may be passed to the library assuming there is no preliminary input validation by the higher-level application.
Severity ?
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "idna"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.15"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-45409"
],
"database_specific": {
"cwe_ids": [
"CWE-1333"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-19T14:34:32Z",
"nvd_published_at": "2026-06-05T23:16:43Z",
"severity": "MODERATE"
},
"details": "This is the same issue as CVE-2024-3651, however the original remediation in 2024 was not a complete fix. Payloads such as `\"\\u0660\" * N` or `\"\\u30fb\" * N + \"\\u6f22\"` utilize the `valid_contexto` function prior to length rejection, and for high values of `N` will take a long time to process.\n\n### Impact\nA specially crafted argument to the `idna.encode()` function could consume significant resources. This may lead to a denial-of-service.\n\n### Patches\nStarting in version 3.14, the function rejects long inputs as soon as practicable prior to any further processing to minimize resource consumption. In version 3.15, this approach was extended to lesser used alternate functions (i.e. per-label conversions and codec support).\n\n### Workarounds\nDomain names cannot exceed 253 characters in length, if this length limit is enforced prior to passing the domain to the `idna.encode()` function it should no longer consume significant resources. This is triggered by arbitrarily large inputs that would not occur in normal usage, but may be passed to the library assuming there is no preliminary input validation by the higher-level application.",
"id": "GHSA-65pc-fj4g-8rjx",
"modified": "2026-06-09T11:57:15Z",
"published": "2026-05-19T14:34:32Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/kjd/idna/security/advisories/GHSA-65pc-fj4g-8rjx"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45409"
},
{
"type": "PACKAGE",
"url": "https://github.com/kjd/idna"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Internationalized Domain Names in Applications (IDNA): Specially crafted inputs to idna.encode() can bypass CVE-2024-3651 fix"
}
GHSA-PWV6-VV43-88GR
Vulnerability from github – Published: 2026-05-04 20:20 – Updated: 2026-05-13 13:41
VLAI?
Summary
Pillow has an OOB Write with Invalid PSD Tile Extents (Integer Overflow)
Details
Impact
Processing a malicious PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution.
Patches
Patched version: 12.2.0
Pillow 12.1.1 addressed CVE-2026-25990 by adding checks for tile extents in PSD image decoding/encoding to prevent an out-of-bounds write. However, the bounds checks computed tile extent sums using types susceptible to integer overflow, meaning a PSD image with carefully chosen tile dimensions could produce values that wrap around and bypass the checks, still triggering an out-of-bounds write in src/decode.c and src/encode.c. The fix avoids adding extents together before comparison.
Workarounds
Use any version but affected versions: >= 10.3.0, < 12.2.0
Resources
- Fix: https://github.com/python-pillow/Pillow/pull/9520
- Original issue: CVE-2026-25990 (Pillow 12.1.1)
Severity ?
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pillow"
},
"ranges": [
{
"events": [
{
"introduced": "10.3.0"
},
{
"fixed": "12.2.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-42311"
],
"database_specific": {
"cwe_ids": [
"CWE-190",
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-04T20:20:31Z",
"nvd_published_at": "2026-05-09T06:16:10Z",
"severity": "HIGH"
},
"details": "### Impact\nProcessing a malicious PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution.\n\n### Patches\nPatched version: 12.2.0\n\nPillow 12.1.1 addressed CVE-2026-25990 by adding checks for tile extents in PSD image decoding/encoding to prevent an out-of-bounds write. However, the bounds checks computed tile extent sums using types susceptible to integer overflow, meaning a PSD image with carefully chosen tile dimensions could produce values that wrap around and bypass the checks, still triggering an out-of-bounds write in src/decode.c and src/encode.c. The fix avoids adding extents together before comparison.\n\n### Workarounds\nUse any version but affected versions: \u003e= 10.3.0, \u003c 12.2.0\n\n### Resources\n - Fix: https://github.com/python-pillow/Pillow/pull/9520 \n - Original issue: CVE-2026-25990 (Pillow 12.1.1)",
"id": "GHSA-pwv6-vv43-88gr",
"modified": "2026-05-13T13:41:29Z",
"published": "2026-05-04T20:20:31Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-cfh3-3jmp-rvhc"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-pwv6-vv43-88gr"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42311"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/pull/9520"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/commit/58f9a1d166dcb0c274807d4423522d205b0c35ea"
},
{
"type": "PACKAGE",
"url": "https://github.com/python-pillow/Pillow"
},
{
"type": "WEB",
"url": "https://github.com/python-pillow/Pillow/releases/tag/12.2.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Pillow has an OOB Write with Invalid PSD Tile Extents (Integer Overflow)"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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