CVE-2026-42012highCWE-295

CVE-2026-42012: fallo de gravedad alta en gnutls

Gnutls: gnutls: certificate validation bypass due to improper handling of uri and srv sans

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear Red Hat Enterprise Linux+ Monitorear Red Hat OpenShift Container Platform

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21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 7.1epss 0.4%
A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier (URI) or Service (SRV) Subject Alternative Names (SANs). This could cause the certificate validation process to incorrectly fall back to checking DNS hostnames against the Common Name (CN), potentially allowing the attacker to spoof legitimate services or intercept sensitive information.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
Productos afectados
gnutlsRed Hat · Cert Manager support for Red Hat OpenShift release 1.17Red Hat · Cert Manager support for Red Hat OpenShift release 1.18Red Hat · Cert Manager support for Red Hat OpenShift release 1.20Red Hat · Red Hat Discovery 2Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat · Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONRed Hat · Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat · Red Hat Hardened ImagesRed Hat · Red Hat OpenShift AI 3.4Red Hat · Red Hat OpenShift Container Platform 4Red Hat · Red Hat OpenShift Container Platform 4.20Red Hat · Red Hat OpenShift Container Platform 4.21Red Hat · Red Hat OpenShift Container Platform 4.22Red Hat · Red Hat OpenShift Container Platform 5Red Hat · Red Hat Update Infrastructure 5
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