CVE-2026-42169
HIGHGimp: gimp apng loader heap-buffer-overflow when fctl width exceeds ihdr width (file-png.c)
Title source: cnaDescription
A heap-buffer-overflow vulnerability exists in the APNG (Animated PNG) file loader of GIMP. This flaw occurs when the `fcTL` width exceeds the `IHDR` width, leading to pixel data being written past the end of a heap allocation. Additionally, a heap-based buffer overflow exists in the DDS plug-in due to a BPP mismatch in the `load_layer()` function. Both vulnerabilities can be triggered by opening a specially crafted image file, potentially leading to code execution.
References (3)
Core 3
Core References
Vdb Entry, X_Refsource_Redhat vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-42169
Issue Tracking, X_Refsource_Redhat issue-tracking
x_refsource_redhat
RHBZ#2461725
https://bugzilla.redhat.com/show_bug.cgi?id=2461725
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:50817
https://access.redhat.com/errata/RHSA-2026:50817
Scores
CVSS v3
7.3
EPSS
0.0013
EPSS Percentile
3.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-131
Status
published
Products (5)
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Enterprise Linux 7
Red Hat/Red Hat Enterprise Linux 8
Red Hat/Red Hat Enterprise Linux 9
Red Hat/Red Hat Enterprise Linux 9
2:3.0.4-4.el9_8.9
Published
Aug 04, 2026
Tracked Since
Aug 04, 2026