CVE-2025-14831
Medium
Description
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).
SeverityMedium
CVSS5.3
Exploit probability—
Product
Gnutls
PublishedFeb 9, 2026
First seenFeb 9, 2026
Weakness typeCWE-407CWE-407
How to fix
Vendor advisories
- access.redhat.com/errata/RHSA-2026:13812
- access.redhat.com/errata/RHSA-2026:16008
- access.redhat.com/errata/RHSA-2026:16009
- access.redhat.com/errata/RHSA-2026:16174
- access.redhat.com/errata/RHSA-2026:25096
- access.redhat.com/errata/RHSA-2026:30849
- access.redhat.com/errata/RHSA-2026:30850
- access.redhat.com/errata/RHSA-2026:33125
- access.redhat.com/errata/RHSA-2026:3477
- access.redhat.com/errata/RHSA-2026:4188
- access.redhat.com/errata/RHSA-2026:4655
- access.redhat.com/errata/RHSA-2026:4943
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnutls | 0 | — |
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support | No range specified | — |
| enterprise_linux 8 | No range specified | — |
| rhel_aus 8.4 | No range specified | — |
| rhel_aus 8.6 | No range specified | — |
| rhel_e4s 8.8 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| rhel_e4s 9.2 | No range specified | — |
| rhel_eus 9.4 | No range specified | — |
| rhel_eus 9.6 | No range specified | — |
| rhosemc 1.0 | No range specified | — |
| cert_manager 1.18 | No range specified | — |
| ai_inference_server 3.2 | No range specified | — |
| ai_inference_server 3.3 | No range specified | — |
| ceph_storage 8 | No range specified | — |
| discovery 2 | No range specified | — |
| Red Hat Red Hat Hardened Images | No range specified | — |
| insights_proxy 1.5 | No range specified | — |
| rhui 5 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 6 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 | No range specified | — |
| Red Hat Red Hat OpenShift Container Platform 4 | No range specified | — |
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