gnutls: GnuTLS: Denial of Service via excessive resource consumption during certificate verification

A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names SANs...

Check Point IKEv1 Remote-Access VPN - Certificate Authentication Bypass

IKEv1 key exchange contains a broken authentication caused by logic flow weakness in Remote Access and Mobile Access certificate validation, letting unauthenticated remote attackers bypass user authentication and establish VPN connections without valid passwords, exploit requires use of deprecate...

UBUNTU-CVE-2026-6091

Partial-chain certificate verification may accept chains that terminat...

CVE-2026-12340

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...

CVE-2026-11310

X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier wolfSSLX509verifycert. This affects only builds with --enable-opensslextra OPENSSLEXTRA and whose application validates certificates by calling X509verifycert with caller-supplied untrusted intermediate certificates; for...

EUVD-2026-39548

X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier wolfSSLX509verifycert. This affects only builds with --enable-opensslextra OPENSSLEXTRA and whose application validates certificates by calling X509verifycert with caller-supplied untrusted intermediate certificates; for...

CVE-2026-11310

X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier wolfSSLX509verifycert. This affects only builds with --enable-opensslextra OPENSSLEXTRA and whose application validates certificates by calling X509verifycert with caller-supplied untrusted intermediate certificates; for...

CVE-2026-11310 X.509 trust-chain bypass in wolfSSL_X509_verify_cert() via untrusted intermediate anchoring

X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier wolfSSLX509verifycert. This affects only builds with --enable-opensslextra OPENSSLEXTRA and whose application validates certificates by calling X509verifycert with caller-supplied untrusted intermediate certificates; for...

CVE-2026-12340 Out-of-bounds heap read in SM2/SM3 certificate Subject Key Identifier computation

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...

EUVD-2026-39547

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...

CVE-2026-12340

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...

CVE-2026-12340

The CVE-2026-12340 issue is a concrete out-of-bounds heap read during SM2/SM3 certificate verification. Specifically, when parsing a certificate with an SM3wSM2 signature, the Subject Key Identifier is computed by reading the trailing 65 bytes of the public key without verifying the key length fi...

CVE-2026-55964 Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA (temporary CA exemption)

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 WOLFSSLTEMPCA added while building a certificate path were previously exempt...

CVE-2026-6091

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...

CVE-2026-11999 X.509 trust-chain bypass via path-depth exhaustion in wolfSSL_X509_verify_cert()

X.509 trust-chain bypass path-depth exhaustion in the OpenSSL compatibility certificate verifier wolfSSLX509verifycert. This affects only builds with --enable-opensslextra whose application calls X509verifycert with caller-supplied untrusted intermediates; for those users it is critical, otherwis...

CVE-2026-11999

CVE-2026-11999 affects wolfSSL when built with --enable-opensslextra. The X509_verify_cert() path-depth exhaustion in wolfSSL_X509_verify_cert() can allow an attacker-controlled certificate to be accepted if the caller supplies untrusted intermediates and the chain depth exceeds the verifier’s ma...

CVE-2026-6091

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...

CVE-2026-6091

Partial-chain certificate verification may accept chains that terminate at a peer-supplied, untrusted intermediate certificate rather than a trusted anchor. The vulnerability affects the wolfSSL OpenSSL compatibility certificate-path-building path (wolfSSL_X509_verify_cert / X509_STORE, OPENSSL_E...

CVE-2026-12490

CVE-2026-12490 describes a bypass of client certificate verification during transfers when a provide-xfr rule uses a tls-auth-name. A secondary transfer may require a client certificate with that name, but no certificate is needed if the request is over TLS on the regular tls-port (not tls-auth-p...

PT-2026-52563

Name of the Vulnerable Software and Affected Versions wolfSSL affected versions not specified Description An X.509 trust-chain bypass exists in the OpenSSL compatibility certificate verifier function wolfSSL X509 verify cert. This issue occurs in builds configured with --enable-opensslextra OPENS...