CVE-2022-3602

CVE−2022-3602 ¿Qué es esto? Este documento y repositorio es un informe técnico de CVE−2022-3602, un problema de desbordamiento de búfer en punycode dentro de OpenSSL. Es un «anti-POC» el problema no parece explotable pensado para quienes mantienen sus propias compilaciones de OpenSSL y para los...

netty: Netty: High integrity impact due to improper DNS domain name constraint enforcement

A flaw was found in Netty. Netty's DNS Domain Name System codec does not properly enforce domain name constraints as defined in RFC 1035 during both encoding and decoding processes. This vulnerability allows a remote attacker to exploit the decoder using malicious DNS responses or exploit the...

netty: Netty: High integrity impact due to improper DNS domain name constraint enforcement

A flaw was found in Netty. Netty's DNS Domain Name System codec does not properly enforce domain name constraints as defined in RFC 1035 during both encoding and decoding processes. This vulnerability allows a remote attacker to exploit the decoder using malicious DNS responses or exploit the...

EUVD-2026-91228

Improper certificate validation in the directoryName name-constraint check PkixNameConstraintValidator.WithinDNSubtree in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who controls, or can have certificates issued by, a name-constrained intermediate CA to get...

CVE-2026-63576 URI name constraints checked against a mis-parsed host

Improper certificate validation in PkixNameConstraintValidator ExtractHostFromURL in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a name-constrained subordinate CA, or anyone able to obtain certificates with chosen subjectAltName URIs from such a CA, to bypass permitted or...

EUVD-2026-91227

Improper certificate validation in PkixNameConstraintValidator ExtractHostFromURL in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a name-constrained subordinate CA, or anyone able to obtain certificates with chosen subjectAltName URIs from such a CA, to bypass permitted or...

CLEANSTART-2026-UM83284 Due to the design of the name constraint checking algorithm, the processing time of some inputs scale non-linearly with respect to the size of the certificate

Security vulnerability affects the cri-tools package. Due to the design of the name constraint checking algorithm, the processing time of some inputs scale non-linearly with respect to the size of the certificate...

AlmaLinux 9.2 [TuxCare] Security Update: golang / golang-bin / golang-docs / golang-misc / golang-race / etc (ALMALINUX9.2:CLSA-2025:1748945500)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1748945500 advisory. - 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...

Security Bulletin: Storage Virtualize Ansible Collection is VEX affected by a vulnerability in the crypography package

Summary Storage Virtualize Ansible Collection uses the cryptography package to establish secure communications with managed systems. Due to CVE-2026-34073, certificate validation performed by the cryptography package may incorrectly trust certificates in certain DNS name constraint scenarios...

Linux Distros Unpatched Vulnerability : CVE-2026-89134

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-D...

CVE-2026-89134

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

DEBIAN-CVE-2026-89134

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

CVE-2026-89134

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

UBUNTU-CVE-2026-89134

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

CVE-2026-89134

The wolfSSL library (version 5.9.2 ) is vulnerable to a bypass of the Subject CN dNSName name-constraint check . This issue arises because the CN-as-DNS fallback was incorrectly gated on the absence of all alternative names (cert->altNames == NULL) rather than specifically checking for the abs...

CVE-2026-89134 Subject CN name-constraint check bypassed when non-DNS SAN present

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

EUVD-2026-87913

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

CVE-2026-89134 Subject CN name-constraint check bypassed when non-DNS SAN present

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

CVE-2026-89134

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...

CVE-2026-89134 Subject CN name-constraint check bypassed when non-DNS SAN present

A certificate with no dNSName SAN but another SAN type present e.g. registeredID or iPAddress bypassed the Subject CN dNSName name-constraint check. The CN-as-DNS fallback was gated on cert-subjectCN != NULL && cert-altNames == NULL && !cert-isCA instead of "no dNSName SAN", so an out-of-scope CN...