Bug#1138235: glib-networking: CVE-2026-10028

[Salvatore Bonaccorso]

Source: glib-networking
Version: 2.80.1-1
Severity: important
Tags: security upstream
Forwarded: https://gitlab.gnome.org/GNOME/glib-networking/-/work_items/231
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for glib-networking.

CVE-2026-10028[0]:
| A flaw was found in glib-networking. A remote attacker can exploit
| this vulnerability by presenting a specially crafted certificate
| chain to an application that uses glib-networking with the GnuTLS
| backend enabled and performs certificate verification. This crafted
| chain, which contains circular issuer relationships, can cause an
| infinite loop during certificate verification. The unbounded
| traversal consumes excessive CPU resources, leading to a denial of
| service for the affected process or worker.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-10028
    https://www.cve.org/CVERecord?id=CVE-2026-10028
[1] https://gitlab.gnome.org/GNOME/glib-networking/-/work_items/231

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore