CVE-2026-42225

PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, on GnuTLS builds, the SIP TLS transport siptransporttls can accept connections with invalid or untrusted certificates even when the application explicitly enables certificate verification via...

CVE-2026-42225

PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, on GnuTLS builds, the SIP TLS transport siptransporttls can accept connections with invalid or untrusted certificates even when the application explicitly enables certificate verification via...

CVE-2026-42225 GnuTLS backend silently skips certificate chain verification when verify_peer is false

PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, on GnuTLS builds, the SIP TLS transport siptransporttls can accept connections with invalid or untrusted certificates even when the application explicitly enables certificate verification via...

CVE-2026-42225

PJSIP’s GnuTLS-enabled SIP TLS transport (sip_transport_tls) in builds prior to version 2.17 can accept connections with invalid/untrusted certificates even when verify_server/verify_client are PJ_TRUE. The vulnerability arises from certificate verification being effectively skipped for those bui...

CLSA-2026-1778172299 gnutls: Fix of CVE-2026-33845

CVE-2026-33845: fix DTLS handshake fragment reassembly integer underflow and heap overrun by tracking fraglength instead of endoffset...

EUVD-2026-28386

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation via incorrect handling of name constraints during certificate validation. An attacker can bypass critical certificate validation checks by presenting a certificate chain where permitted name constraints a...

ALPINE-CVE-2026-42011

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate...

CVE-2026-42011

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate...

CVE-2026-42011 Gnutls: gnutls: security bypass due to incorrect name constraint handling

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate...

CVE-2026-42011

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate...

CVE-2026-42011 Gnutls: gnutls: security bypass due to incorrect name constraint handling

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate...

CVE-2026-42011

CVE-2026-42011: In GnuTLS, permitted name constraints can be ignored when previous CAs had only excluded constraints, enabling bypass of name-constraint validation. This could allow accepting invalid certificates, potentially allowing spoofing or MITM. No patch/version details are provided in the...

CVE-2026-42011

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication due to the improper handling of usernames containing a NUL character when server is configured with RSA-PSK. An attacker can gain unauthorized access by sending a specially crafted username that causes the server...

EUVD-2026-28354

A flaw was found in gnutls. Servers configured with RSA-PSK Rivest–Shamir–Adleman – Pre-Shared Key wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass...

ALPINE-CVE-2026-42010

A flaw was found in gnutls. Servers configured with RSA-PSK Rivest–Shamir–Adleman – Pre-Shared Key wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass...

CVE-2026-42010

A flaw was found in gnutls. Servers configured with RSA-PSK Rivest–Shamir–Adleman – Pre-Shared Key wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass...

AZL-86775 CVE-2026-42010 affecting package gnutls for versions less than 3.8.3-11

A flaw was found in gnutls. Servers configured with RSA-PSK Rivest–Shamir–Adleman – Pre-Shared Key wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass...

CVE-2026-42010 Gnutls: gnutls: authentication bypass via nul character in username

A flaw was found in gnutls. Servers configured with RSA-PSK Rivest–Shamir–Adleman – Pre-Shared Key wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass...