Linux Distros Unpatched Vulnerability : CVE-2026-10592

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

DEBIAN-CVE-2026-10592

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...

CVE-2026-10592

CVE-2026-10592 concerns certificates with wildcard DNS SANs (e.g., *.example.com) bypassing CA name-constraint checks. A wildcard SAN that should be rejected by the issuing CA’s permitted/excluded DNS name constraints could be accepted, enabling potential mis-issuance. The provided documents refe...

CVE-2026-9648 CVE-2026-9648

The crypton-x509-validation Haskell library fails to enforce X.509 NameConstraints, allowing TLS clients to accept certificates whose Subject Alternative Names fall outside the issuing CA’s permitted subtrees. This oversight enables an attacker who compromises a name-constrained sub-CA to...

EUVD-2026-36248

The crypton-x509-validation Haskell library fails to enforce X.509 NameConstraints, allowing TLS clients to accept certificates whose Subject Alternative Names fall outside the issuing CA’s permitted subtrees. This oversight enables an attacker who compromises a name-constrained sub-CA to...

SUSE SLES12 Security Update : strongswan (SUSE-SU-2026:1762-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1762-1 advisory. - CVE-2026-35329: NULL pointer dereference when processing padding in PKCS7 bsc1261717. - CVE-2026-35330: integer underflow when handling...

USN-8196-1 strongswan vulnerabilities

Haruto Kimura discovered that strongSwan incorrectly handled the supportedversions extension in TLS. A remote attacker could possibly use this issue to cause strongSwan to stop responding, resulting in a denial of service. CVE-2026-35328 Haruto Kimura discovered that strongSwan incorrectly handle...

CVE-2026-35331

Accepting Certificates Violating Name Constraints...

SUSE-SU-2026:21021-1 Security update for python-cryptography

This update for python-cryptography fixes the following issues: - CVE-2026-34073: Fixed X.509 bypass of name constraints on wildcard SANs with matching peer names. bsc1260876 - CVE-2026-26007: missing validation can lead to security issues for signature verification ECDSA and shared key negotiati...

Security Bulletin: Certificate Name Constraints Algorithm Vulnerable to Non-Linear Processing DoS affects watsonx.data

Summary A flaw in the certificate name constraints checking algorithm can lead to non-linear processing time, allowing specially crafted certificate chains to cause excessive resource consumption and potential Denial-of-Service DoS. This can affect watsonx.data. Vulnerability Details...

Amazon Linux 2023 : gnutls, gnutls-c++, gnutls-dane (ALAS2023-2026-1529)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1529 advisory. 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...

Important: cni-plugins

Issue Overview: net/url: insufficient validation of bracketed IPv6 hostnames The Parse function permitted values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed withi...

golang: crypto/x509: crypto/x509: usage of IPv6 zone IDs can bypass URI name constraints

A flaw was found in the crypto/x509 package of the Golang standard library. A certificate with a URI, which has a IPv6 address with a zone ID, may incorrectly satisfy a URI name constraint that applies to the certificate chain. Certificates containing URIs are not permitted in the web PKI; this...

SUSE CVE-2022-3602

A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate...

OpenSSL 缓冲区错误漏洞

OpenSSL is an open source capable general-purpose cryptographic library from the OpenSSL team that implements the Secure Sockets Layer SSLv2/v3 and Secure Transport Layer TLSv1 protocols. It supports a variety of cryptographic algorithms, including symmetric ciphers, hashing algorithms, secure...

UBUNTU-CVE-2022-4203

A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate...

PT-2022-5307

Name of the Vulnerable Software and Affected Versions OpenSSL versions 3.0.0 through 3.0.6 Description A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. This occurs after certificate chain signature verification and requires either a CA...

CVE-2021-44532

Node.js 12.22.9, 14.18.3, 16.13.2, and 17.3.1 converts SANs Subject Alternative Names to a string format. It uses this string to check peer certificates against hostnames when validating connections. The string format was subject to an injection vulnerability when name constraints were used withi...