CVE-2026-5263 URI nameConstraints not enforced in ConfirmNameConstraints()

URI nameConstraints from constrained intermediate CAs are parsed but not enforced during certificate chain verification in wolfcrypt/src/asn.c. A compromised or malicious sub-CA could issue leaf certificates with URI SAN entries that violate the nameConstraints of the issuing CA, and wolfSSL woul...

K15623: GnuTLS vulnerability CVE-2009-5138

Security Advisory Description GnuTLS before 2.7.6, when the GNUTLSVERIFYALLOWX509V1CACRT flag is not enabled, treats version 1 X.509 certificates as intermediate CAs, which allows remote attackers to bypass intended restrictions by leveraging a X.509 V1 certificate from a trusted CA to issue new...

CVE-2009-5138

GnuTLS before 2.7.6, when the GNUTLSVERIFYALLOWX509V1CACRT flag is not enabled, treats version 1 X.509 certificates as intermediate CAs, which allows remote attackers to bypass intended restrictions by leveraging a X.509 V1 certificate from a trusted CA to issue new certificates, a different...

Debian DSA-2599-1 : nss - mis-issued intermediates

Google, Inc. discovered that the TurkTrust certification authority included in the Network Security Service libraries nss mis-issued two intermediate CAs which could be used to generate rogue end-entity certificates. This update explicitly distrusts those two intermediate CAs. The two existing...

Debian DSA-2307-1 : chromium-browser - several vulnerabilities

Several vulnerabilities were discovered in the Chromium browser. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2011-2818 Use-after-free vulnerability in Google Chrome allows remote attackers to cause a denial of service or possibly have unspecified oth...