Search criteria
101 vulnerabilities
CVE-2026-7511 (GCVE-0-2026-7511)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:32 – Updated: 2026-06-26 10:37
VLAI?
Title
PKCS7_verify signer confusion allows forged signatures to be accepted
Summary
PKCS7_verify signer confusion allows forged signatures, where the signer associated with a signature is not correctly bound, permitting a forged signature to be accepted.
Severity ?
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Credits
Nicholas Carlini from Anthropic
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CVE-2026-7532 (GCVE-0-2026-7532)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:31 – Updated: 2026-07-01 16:47
VLAI?
Title
iPAddress name constraints not enforced when WOLFSSL_IP_ALT_NAME is undefined
Summary
iPAddress name constraints bypass when WOLFSSL_IP_ALT_NAME is not defined. IP address name constraints are not enforced in that configuration, allowing a certificate to bypass an issuing CA's IP address constraints.
Severity ?
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Credits
Ankur Tyagi of Cisco Talos (TALOS-2026-2409)
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CVE-2026-8720 (GCVE-0-2026-8720)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:18 – Updated: 2026-06-26 10:35
VLAI?
Title
HMAC-BLAKE2 final discards message when key length exceeds block size
Summary
wc_Blake2bHmacFinal and wc_Blake2sHmacFinal discard the message when the key length exceeds the block size, producing a MAC that is independent of the input. When the supplied key is longer than the BLAKE2 block size the key-hashing branch reinitialized the running hash state, discarding the accumulated message data, so the resulting MAC depended only on the key and not on the message being authenticated. This bug is specific to the HMAC-BLAKE2 APIs that were added in wolfSSL version 5.9.0.
Severity ?
CWE
- CWE-354 - Improper Validation of Integrity Check Value
Assigner
References
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CVE-2026-10098 (GCVE-0-2026-10098)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:16 – Updated: 2026-06-26 10:34
VLAI?
Title
OCSP CertID serial-number length-confusion in wolfSSL_OCSP_resp_find_status
Summary
OCSP CertID serial-number length-confusion in wolfSSL_OCSP_resp_find_status allows a same-issuer SingleResponse whose serial is a prefix of the target serial to be reported as the revocation status of a different certificate. The lookup compared serial-number bytes without first requiring the two serial numbers to be of equal length, so a SingleResponse for one certificate (same issuer) whose serial is a prefix of the target's serial would match, returning the wrong certificate's status. The fix requires the serial lengths to be equal before comparing the serial bytes.
Severity ?
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Credits
Kim Youngjoon (Team-Atlanta and Georgia Institute of Technology)
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CVE-2026-11703 (GCVE-0-2026-11703)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:15 – Updated: 2026-06-26 10:32
VLAI?
Title
Missing SNI/ALPN binding on stateful (session-ID) TLS session resumption
Summary
Missing SNI/ALPN binding on stateful (session-ID) resumption, which previously skipped the binding check performed for ticket-based resumption. A cached session could be resumed under a different SNI/ALPN than originally negotiated and, where client-authentication policy differs across virtual hosts, carry the cached peer-authentication state into a context it was not established for. Resumption now verifies the SNI/ALPN binding for all paths and declines (falling back to a full handshake) on mismatch.
Severity ?
CWE
- CWE-287 - Improper Authentication
Assigner
References
Credits
Dikai Zou
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CVE-2026-55962 (GCVE-0-2026-55962)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:12 – Updated: 2026-06-26 10:31
VLAI?
Title
TLS 1.3 post-handshake authentication: server accepts Finished without client Certificate/CertificateVerify
Summary
TLS 1.3 post-handshake authentication (PHA) issue where a server could accept a client's Finished message without the client having sent a Certificate and CertificateVerify. The post-handshake-auth exemption that allows an empty/absent peer certificate was only intended for the initial handshake, but it was also being applied while a post-handshake CertificateRequest was still outstanding. The check is now scoped to the initial handshake only: on the server, once a post-handshake CertificateRequest has been sent (certReqCtx is set), a peer certificate and a valid CertificateVerify are required again before the Finished is accepted, with empty-certificate handling following the configured verify mode (FAIL_IF_NO_PEER_CERT) just as during first-handshake client authentication. Only affects TLS 1.3 servers built with post-handshake authentication support (WOLFSSL_POST_HANDSHAKE_AUTH / --enable-postauth, included in --enable-all) that enable WOLFSSL_VERIFY_POST_HANDSHAKE and request a client certificate after the handshake via wolfSSL_request_certificate(). Clients, and servers that do not use post-handshake authentication, are unaffected.
Severity ?
CWE
- CWE-287 - Improper Authentication
Assigner
References
Credits
NVIDIA Project Vanessa
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CVE-2026-6092 (GCVE-0-2026-6092)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:06 – Updated: 2026-06-26 10:25
VLAI?
Title
Encrypt-then-MAC could fall back to MAC-then-Encrypt when HAVE_ENCRYPT_THEN_MAC is configured
Summary
When HAVE_ENCRYPT_THEN_MAC is configured, the implementation could fall back to MAC-then-Encrypt rather than enforcing Encrypt-then-MAC.
Severity ?
CWE
- CWE-757 - Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
Assigner
References
Credits
Marcin Olejnik (Rockwell Automation)
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CVE-2026-6325 (GCVE-0-2026-6325)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:04 – Updated: 2026-06-26 10:23
VLAI?
Title
Out-of-bounds write in SetSuitesHashSigAlgo on oversized signature algorithms list
Summary
Out-of-bounds write in SetSuitesHashSigAlgo when processing an oversized signature algorithms list, allowing a write past the bounds of the destination buffer.
Severity ?
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
Credits
Muhammad Arya Arjuna Habibullah (Pelioro)
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CVE-2026-6329 (GCVE-0-2026-6329)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:02 – Updated: 2026-06-26 10:22
VLAI?
Title
PKCS#12 MAC verification uses attacker-controlled comparison length
Summary
PKCS#12 MAC verification uses an attacker-controlled comparison length, weakening the integrity check on the MAC and allowing a mismatched MAC to be accepted. The PKCS#12 verify path compared the locally computed HMAC against the MAC parsed from the PKCS#12 structure using a length taken directly from the attacker-supplied input, without first verifying that it equals the length of the digest actually produced by the configured algorithm. A truncated or zero-length stored MAC could therefore be accepted, defeating the integrity protection of the MAC.
Severity ?
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Credits
Nicholas Carlini from Anthropic
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CVE-2026-6330 (GCVE-0-2026-6330)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:01 – Updated: 2026-06-26 10:20
VLAI?
Title
ML-KEM ARM64 NEON ciphertext comparison only compares half of the input
Summary
The ML-KEM ARM64 NEON ciphertext comparison only compares half of the input, breaking the Fujisaki-Okamoto transform's implicit rejection and weakening IND-CCA2 security on that code path. The constant-time comparison effectively ignored part of the re-encrypted ciphertext, so a decapsulating party could fail to detect a manipulated ciphertext and proceed without the standard's required implicit rejection.
Severity ?
CWE
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Credits
Nicholas Carlini from Anthropic
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CVE-2026-6331 (GCVE-0-2026-6331)
Vulnerability from cvelistv5 – Published: 2026-06-25 20:56 – Updated: 2026-06-26 13:53
VLAI?
Title
HMAC zero-length tag forgery in EVP_DigestVerifyFinal
Summary
HMAC zero-length tag forgery in EVP_DigestVerifyFinal, where a zero-length tag could be accepted as valid during HMAC verification. In the OpenSSL-compatibility HMAC verify path the supplied signature length was only checked as not exceeding the MAC length, so a zero-length or otherwise truncated tag could pass verification. The fix requires the supplied tag length to exactly equal the MAC length and rejects a zero-length MAC, so a forged short or empty tag is no longer accepted.
Severity ?
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Credits
Nicholas Carlini from Anthropic
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CVE-2026-6412 (GCVE-0-2026-6412)
Vulnerability from cvelistv5 – Published: 2026-06-25 20:38 – Updated: 2026-06-26 13:06
VLAI?
Title
Continued acceptance of SHA-1/MD5 digests in certificate processing
Summary
Certificate policy and RFC 8446 compliance concerns regarding the continued acceptance of SHA-1/MD5 in certificate processing.
Severity ?
CWE
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Credits
Xiangdong Li (Student, Beijing University of Posts and Telecommunications [BUPT])
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CVE-2026-6450 (GCVE-0-2026-6450)
Vulnerability from cvelistv5 – Published: 2026-06-25 20:18 – Updated: 2026-06-26 13:11
VLAI?
Title
CRL critical extension bypass in ParseCRL_Extensions
Summary
A CRL critical extension bypass exists in ParseCRL_Extensions where critical extensions are not properly enforced, allowing a crafted CRL with an unhandled critical extension to be accepted. This only affects builds with CRL support enabled and where a crafted CRL had a trusted signature when parsed.
Severity ?
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Credits
Oleh Konko (@1seal)
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CVE-2026-6678 (GCVE-0-2026-6678)
Vulnerability from cvelistv5 – Published: 2026-06-25 20:16 – Updated: 2026-07-01 16:47
VLAI?
Title
Integer underflow in wc_PKCS7_DecryptOri handling crafted Other Recipient Info
Summary
Integer underflow in wc_PKCS7_DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption.
Severity ?
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
Credits
Dikai Zou
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CVE-2026-6679 (GCVE-0-2026-6679)
Vulnerability from cvelistv5 – Published: 2026-06-25 20:13 – Updated: 2026-06-26 13:13
VLAI?
Title
DTLS 1.3 ACK serialization heap buffer overflow via integer truncation
Summary
A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer is authenticated. The buffer overflow was due to an integer truncation when computing the length of the ACK record-number list, causing an undersized buffer to be allocated and then overrun. This affects builds using DTLS 1.3 and wolfSSL version 5.9.0 and earlier. A fix was added to the 5.9.1 release.
Severity ?
CWE
Assigner
References
Credits
Nicholas Carlini from Anthropic
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CVE-2026-6681 (GCVE-0-2026-6681)
Vulnerability from cvelistv5 – Published: 2026-06-25 20:11 – Updated: 2026-06-26 13:14
VLAI?
Title
PKCS#7 decode ignores caller output buffer size, writing past buffer bounds
Summary
The PKCS#7 decode path ignores the caller-supplied output buffer size (outputSz), allowing decoded content to be written past the bounds of the provided buffer. This affects wolfSSL 5.9.0 and earlier and was fixed in the 5.9.1 release.
Severity ?
Assigner
References
Credits
Nicholas Carlini from Anthropic
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CVE-2026-6731 (GCVE-0-2026-6731)
Vulnerability from cvelistv5 – Published: 2026-06-25 20:08 – Updated: 2026-06-26 13:16
VLAI?
Title
X.509 name constraint bypass via Subject CN treated as a DNS name
Summary
X.509 name constraint bypass via the Subject Common Name when treated as a DNS-type name. A certificate whose Subject CN violates an issuing CA's DNS name constraints could be accepted.
Severity ?
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Credits
d0sf3t (Aradex)
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CVE-2026-7531 (GCVE-0-2026-7531)
Vulnerability from cvelistv5 – Published: 2026-06-25 20:01 – Updated: 2026-06-26 13:17
VLAI?
Title
Use-after-free in PQC hybrid key-share handling
Summary
Use-after-free in PQC hybrid key-share handling. This is an incomplete-fix follow-up to CVE-2026-5460 (released in 5.9.1): a malicious TLS 1.3 server sending a truncated PQC hybrid KeyShare can still trigger the error cleanup path to operate on freed memory.
Severity ?
CWE
- CWE-416 - Use After Free
Assigner
References
Credits
Thai Duong (Calif.io / Anthropic)
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CVE-2026-10097 (GCVE-0-2026-10097)
Vulnerability from cvelistv5 – Published: 2026-06-25 19:59 – Updated: 2026-06-26 16:35
VLAI?
Title
ML-KEM-1024 x64 AVX2 incomplete cipher text comparison enables IND-CCA2 break and static private-key recovery
Summary
wolfSSL's AVX2-optimized ML-KEM implementation (mlkem_cmp_avx2) compares only 1536 of the 1568 ciphertext bytes during the Fujisaki-Okamoto re-encryption check in ML-KEM-1024 decapsulation. Ciphertexts that differ from the expected re-encryption solely in bytes 1536-1567 bypass implicit rejection and are accepted as valid, breaking IND-CCA2 security. An attacker able to submit chosen ciphertexts to a decapsulation oracle that uses a static ML-KEM-1024 key, and to observe whether the genuine shared secret or the implicit-rejection secret was produced, can use this as a plaintext-checking oracle to recover the private key. A proof of concept recovered a full ML-KEM-1024 private key with approximately 98% success using roughly 350 chosen ciphertexts. The flaw is a deterministic logic error and does not rely on timing measurements.
Severity ?
CWE
- CWE-697 - Incorrect Comparison
Assigner
References
Credits
007bsd (https://github.com/007bsd)
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CVE-2026-10512 (GCVE-0-2026-10512)
Vulnerability from cvelistv5 – Published: 2026-06-25 19:58 – Updated: 2026-06-26 13:49
VLAI?
Title
X25519 x86_64 assembly final reduction leaves non-canonical field element
Summary
The X25519 x86_64 assembly implementation fails to clear the most significant bit during the final modular reduction, so the computed result may not be fully reduced modulo the field prime 2^255 - 19. This can leave the field element in a non-canonical form, producing an incorrect result from the scalar multiplication and potentially a wrong shared secret. The final carry-propagation chains in the x64 and AVX2 reduction routines could overflow into the top bit, and the high limb was not masked afterward, so the 255-bit field element was left non-canonical.
Severity ?
CWE
- CWE-682 - Incorrect Calculation
Assigner
References
Credits
Haruki Oyama
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CVE-2026-10592 (GCVE-0-2026-10592)
Vulnerability from cvelistv5 – Published: 2026-06-25 19:40 – Updated: 2026-06-26 14:03
VLAI?
Title
Wildcard DNS SAN bypasses CA name-constraint checks
Summary
Certificates with wildcard DNS SANs (e.g. *.example.com) bypassed CA name-constraint checks. A certificate with a wildcard DNS SAN that should be rejected by the issuing CA's permitted/excluded DNS name constraints could be accepted.
Severity ?
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Credits
tonghuaroot
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CVE-2026-11310 (GCVE-0-2026-11310)
Vulnerability from cvelistv5 – Published: 2026-06-25 19:38 – Updated: 2026-06-26 14:02
VLAI?
Title
X.509 trust-chain bypass in wolfSSL_X509_verify_cert() via untrusted intermediate anchoring
Summary
X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier (wolfSSL_X509_verify_cert()). This affects only builds with --enable-opensslextra (OPENSSL_EXTRA) and whose application validates certificates by calling X509_verify_cert() with caller-supplied untrusted intermediate certificates; for those users it is critical, otherwise the library is unaffected. In particular, native wolfSSL TLS/DTLS usage is not impacted. wolfSSL's X509_verify_cert() temporarily loads each caller-supplied untrusted intermediate into the certificate manager but failed to drop them before the trusted-store check, so an untrusted intermediate could anchor the path itself. An attacker can present a chain that never reaches a configured trust anchor and have it accepted, resulting in acceptance of an attacker-controlled certificate. This is certificate verification independent of TLS (e.g. S/MIME/CMS, code/firmware signing, JWT/JWS x5c), is not specific to any key type or algorithm, and a single untrusted intermediate suffices. The default wolfSSL TLS handshake (WOLFSSL_VERIFY_PEER) is not affected; only TLS applications doing manual or deferred peer verification through this API are, which also requires --enable-sessioncerts.
Severity ?
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Credits
Corban Villa, Sohee Kim and Austin Chu (UC Berkeley, Sky Lab)
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CVE-2026-12340 (GCVE-0-2026-12340)
Vulnerability from cvelistv5 – Published: 2026-06-25 19:36 – Updated: 2026-06-26 13:59
VLAI?
Title
Out-of-bounds heap read in SM2/SM3 certificate Subject Key Identifier computation
Summary
Out-of-bounds heap read during SM2/SM3 certificate signature verification. When parsing a certificate with an SM3wSM2 signature, the Subject Key Identifier computation reads the trailing 65 bytes of the public key without checking that the key is at least that long. A public key shorter than 65 bytes results in an out-of-bounds heap read, leading to a potential crash (denial of service); there is no out-of-bounds write. Note this only affects builds with SM2 support (--enable-sm2 or --enable-all).
Severity ?
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
Credits
David Pokora, Trail of Bits (in collaboration with Anthropic)
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CVE-2026-55958 (GCVE-0-2026-55958)
Vulnerability from cvelistv5 – Published: 2026-06-25 19:35 – Updated: 2026-06-26 13:58
VLAI?
Title
Renesas TSIP TLS 1.3 transcript buffer out-of-bounds write in tsip_StoreMessage
Summary
Out-of-bounds write in the Renesas TSIP TLS 1.3 transcript buffer. In tsip_StoreMessage() the capacity check guarding the fixed message bag (MSGBAG_SIZE) sets an error code but fails to return, so execution falls through to an XMEMCPY that writes past the end of the buffer once the accumulated TLS 1.3 handshake transcript exceeds MSGBAG_SIZE (8 KB), corrupting adjacent heap state and potentially causing a remote denial of service crash. The bag is sized to hold a normal handshake, so this is reached only by an unusually large but valid certificate chain, or by a malicious or man-in-the-middle server sending an oversized handshake message to a client that does not strictly verify the chain. This only affects builds using the Renesas TSIP TLS port (WOLFSSL_RENESAS_TSIP_TLS) as a TLS 1.3 client on Renesas MCUs with TSIP hardware enabled, and is rated High within those builds. All other configurations are unaffected.
Severity ?
Assigner
References
Credits
NVIDIA Project Vanessa
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CVE-2026-55960 (GCVE-0-2026-55960)
Vulnerability from cvelistv5 – Published: 2026-06-25 19:31 – Updated: 2026-06-26 13:58
VLAI?
Title
Un-negotiated Raw Public Key (RFC 7250) accepted in place of X.509, bypassing chain validation
Summary
Un-negotiated Raw Public Key (RFC 7250) accepted in place of an X.509 certificate, bypassing chain validation. A raw public key has no chain, so ParseCertRelative() accepts it without performing any trust verification; it must therefore only be accepted when RPK was actually negotiated for that peer. The check now defaults the expected type to X.509 (per RFC 7250/8446) when no type was negotiated, comparing against the received server certificate type on the client and the selected client certificate type on the server, and rejects any mismatch, including an un-negotiated raw public key, with UNSUPPORTED_CERTIFICATE. Only affects builds with Raw Public Key support (HAVE_RPK) enabled - disabled by default in a standalone build, but included in --enable-all.
Severity ?
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Credits
NVIDIA Project Vanessa
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CVE-2026-55964 (GCVE-0-2026-55964)
Vulnerability from cvelistv5 – Published: 2026-06-25 19:30 – Updated: 2026-06-26 13:57
VLAI?
Title
Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA (temporary CA exemption)
Summary
Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA. Intermediate CA certificates are required to have the keyCertSign key usage when a Key Usage extension is present, but chain-supplied temporary CAs (WOLFSSL_TEMP_CA) added while building a certificate path were previously exempted from this check, so an intermediate asserting CA:TRUE but lacking keyCertSign was accepted as a signing CA. The check now applies to chain-supplied temporary CAs as well; only operator-loaded root certificates (WOLFSSL_USER_CA) and self-signed roots remain exempt. Per RFC 5280 an absent Key Usage extension implies all usages, so the requirement is enforced only when the extension is actually present (extKeyUsageSet). Affects the OpenSSL-compatibility certificate-path-building path (X509_verify_cert / X509_STORE, OPENSSL_EXTRA/OPENSSL_ALL), where untrusted chain intermediates are added as temporary CAs; native (non-OpenSSL-compat) certificate verification does not create temporary CAs and is unaffected. Within those builds, the check applies unless ALLOW_INVALID_CERTSIGN is defined.
Severity ?
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Credits
NVIDIA Project Vanessa
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CVE-2026-11999 (GCVE-0-2026-11999)
Vulnerability from cvelistv5 – Published: 2026-06-25 16:56 – Updated: 2026-06-25 17:56
VLAI?
Title
X.509 trust-chain bypass via path-depth exhaustion in wolfSSL_X509_verify_cert()
Summary
X.509 trust-chain bypass (path-depth exhaustion) in the OpenSSL compatibility certificate verifier (wolfSSL_X509_verify_cert()). This affects only builds with --enable-opensslextra whose application calls X509_verify_cert() with caller-supplied untrusted intermediates; for those users it is critical, otherwise the library is unaffected. Native wolfSSL TLS/DTLS usage is not impacted. X509_verify_cert() returned success based only on the last verified link rather than on reaching a trust anchor: when the supplied chain is deeper than the verifier's maximum path depth (default 100), path building runs out of depth while still walking untrusted intermediates and the chain is accepted even though it never reaches a configured trust anchor, allowing acceptance of an attacker-controlled certificate. The default TLS handshake (WOLFSSL_VERIFY_PEER) is not affected; only applications doing manual or deferred verification through this API are.
Severity ?
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Credits
Corban Villa, Sohee Kim and Austin Chu (UC Berkeley, Sky Lab)
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CVE-2026-55967 (GCVE-0-2026-55967)
Vulnerability from cvelistv5 – Published: 2026-06-25 16:53 – Updated: 2026-06-25 17:57
VLAI?
Title
AES-GCM streaming APIs do not reject >64 GiB cumulative single messages, enabling counter wrap and keystream reuse
Summary
AES-GCM encryption/decryption with extremely large cumulative single message sizes (>64 GiB) were not properly rejected by the streaming APIs, allowing counter wrap, keystream reuse, and consequent plaintext recovery.
Severity ?
CWE
- CWE-323 - Reusing a Nonce, Key Pair in Encryption
Assigner
References
Credits
NVIDIA Project Vanessa
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CVE-2026-55961 (GCVE-0-2026-55961)
Vulnerability from cvelistv5 – Published: 2026-06-25 16:51 – Updated: 2026-06-25 17:57
VLAI?
Title
wolfSSL_PKCS7_verify() reports success for degenerate (certs-only) PKCS#7 with no signer
Summary
wolfSSL_PKCS7_verify() returning success for a degenerate (certs-only) PKCS#7 object that contains no signer. Such an object has empty signerInfos, so the underlying signed-data verification succeeds without authenticating any content. The compatibility-layer verify path now rejects the object when no signer signature has actually been verified, so a PKCS#7 carrying no valid signature is no longer reported as verified. This is enforced regardless of the PKCS7_NOVERIFY flag, which only suppresses signer certificate chain validation and was never intended to waive the requirement that a signature exist. Only affects OpenSSL compatibility builds that call the PKCS7_verify() compatibility API on potentially degenerate PKCS#7 bundles.
Severity ?
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Credits
NVIDIA Project Vanessa
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CVE-2026-6091 (GCVE-0-2026-6091)
Vulnerability from cvelistv5 – Published: 2026-06-25 16:46 – Updated: 2026-06-25 17:58
VLAI?
Title
Partial-chain verification accepts untrusted intermediate as trust anchor
Summary
Partial-chain certificate verification may accept chains that terminate at a peer-supplied, untrusted intermediate certificate rather than a trusted anchor. An attacker could present a chain that ends at an intermediate they control and have it accepted as valid. This affects the OpenSSL compatibility certificate-path-building path (wolfSSL_X509_verify_cert / X509_STORE, OPENSSL_EXTRA) when the X509_V_FLAG_PARTIAL_CHAIN verify flag is enabled.
Severity ?
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Credits
Dikai Zou
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