Red Hat Security Advisory: gnutls security update
Affects Red Hat gnutlsSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 4.0 Medium : upgrade the Red Hat redhat/gnutls package to 10.2 when convenient.
Data as of 5 Nov 2026, 18:33 UTC
- Patch
- Available – fixed in 10.2
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LExploitation evidence
Disclosed: evidence found.
CVE published 26 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade the Red Hat redhat/gnutls package to 10.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| gnutls | Affected
| Fixed in– |
Red Hatredhat/gnutlspkg:rpm/redhat/gnutlsOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Red Hat has released an official security update for GnuTLS in Red Hat Enterprise Linux 8 that addresses these vulnerabilities. Users should apply the update as described in Red Hat advisory RHSA-2026:5585. The update packages are available for multiple architectures. No additional mitigation steps are indicated beyond applying the official patch.
Description
Two security vulnerabilities were identified in the GnuTLS library used by Red Hat Enterprise Linux 8. One is a stack-based buffer overflow in the gnutls_pkcs11_token_init() function (CVE-2025-9820), and the other is a denial of service vulnerability caused by excessive resource consumption during certificate verification (CVE-2025-14831). Red Hat has issued a security update to address these issues.
References
- access.redhat.com/errata/RHSA-2026:5585 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2392528 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2423177 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_5585.json (opens in a new tab)