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Date: Wed, 7 Oct 2026 16:46:37 +0200
From: Salvatore Bonaccorso <carnil@debian.org>
To: submit@bugs.debian.org
Subject: gimp: CVE-2026-106061
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Source: gimp
Version: 3.2.6-1
X-Debbugs-CC: team@security.debian.org
Severity: important
Tags: security upstream

Hi,

The following vulnerability was published for gimp.

CVE-2026-106061[0]:
| A flaw was found in GIMP’s X cursor (XMC) thumbnail loader. When
| GIMP generates a thumbnail for a crafted XMC file, it allocates a
| pixel buffer using a width * height size computed in 32-bit signed
| arithmetic. If that product overflows, the allocation is smaller
| than the true image extent. A subsequent GEGL buffer read uses the
| unwrapped dimensions and performs an out-of-bounds read on the heap
| (CWE-125), after integer overflow in the size calculation (CWE-190).
| This can crash GIMP or corrupt process memory.


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-2026-106061
    https://www.cve.org/CVERecord?id=CVE-2026-106061
[1] https://bugzilla.redhat.com/show_bug.cgi?id=2546640
[2] https://gitlab.gnome.org/GNOME/gimp/-/work_items/16801
[3] https://gitlab.gnome.org/GNOME/gimp/-/commit/f75c99b283b5b0f476289c4ce89f7b7164032736

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore
]