This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-88647 →
DEBIAN-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...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
gnutls28
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
gnutls28
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
gnutls28
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory security-tracker.debian.org