Gnutls: gnutls: denial of service via excessive resource consumption during certificate verification
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.6%
exploitation probability
0.6%top 53% of all CVEs
observed exploitation
nono source reports it
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 large number of name constraints and subject alternative names (SANs).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
Red Hat · Red Hat AI Inference Server 3.2Red Hat · Red Hat AI Inference Server 3.3Red Hat · Red Hat Ceph Storage 8Red 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 6Red Hat · Red Hat Enterprise Linux 7Red 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 Extended Update SupportRed Hat · Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat · Red Hat Hardened ImagesRed Hat · Red Hat Insights proxy 1.5Red Hat · Red Hat OpenShift Container Platform 4Red Hat · Red Hat Update Infrastructure 5Red Hat · RHEL-8 based Middleware ContainersReferences
https://access.redhat.com/errata/RHSA-2026:13812https://access.redhat.com/errata/RHSA-2026:16008https://access.redhat.com/errata/RHSA-2026:16009https://access.redhat.com/errata/RHSA-2026:16174https://access.redhat.com/errata/RHSA-2026:25096https://access.redhat.com/errata/RHSA-2026:30849https://access.redhat.com/errata/RHSA-2026:30850https://access.redhat.com/errata/RHSA-2026:33125https://access.redhat.com/errata/RHSA-2026:3477https://access.redhat.com/errata/RHSA-2026:4188https://access.redhat.com/errata/RHSA-2026:4655https://access.redhat.com/errata/RHSA-2026:4943