CVE-2026-88647: A hostname verification bypass in GnuTLS v3.8.13 allows attackers to circumvent the Common Name fallback mechanism and eavesdrop on communications via a crafted certificate.
Overview
- Severity
- High (CVSS 7.4)
- CVSS Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Oct
- Released
- 2026-10-11
- Last Updated
- 2026-10-12
- EPSS Score
- 0.21% (percentile: 10.7%)
Affected Products (1)
Other
Revision History
- 2026-10-11: Information published.
- 2026-10-12: Information published.