Bug#1132501: gdk-pixbuf: CVE-2026-5201

[Salvatore Bonaccorso]

Source: gdk-pixbuf
Version: 2.44.5+dfsg-4
Severity: important
Tags: security upstream
Forwarded: https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/304
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for gdk-pixbuf.

CVE-2026-5201[0]:
| A flaw was found in the gdk-pixbuf library. This heap-based buffer
| overflow vulnerability occurs in the JPEG image loader due to
| improper validation of color component counts when processing a
| specially crafted JPEG image. A remote attacker can exploit this
| flaw without user interaction, for example, via thumbnail
| generation. Successful exploitation leads to application crashes and
| denial of service (DoS) conditions.


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-2026-5201
    https://www.cve.org/CVERecord?id=CVE-2026-5201
[1] https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/304
[2] https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/6455d640576743e35f79928bffea97a7ac1c241f

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore