CVE-2026-42169

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.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-25)

CWE

CWE-131

Published

2026-08-04

Modified

2026-10-12

Record from

the NVD, synced 2026-10-19

Affected

• redhat:enterprise_linux
• redhat:enterprise_linux_eus

References

• https://access.redhat.com/errata/RHSA-2026:50817
• https://access.redhat.com/errata/RHSA-2026:73768
• https://access.redhat.com/errata/RHSA-2026:80509
• https://access.redhat.com/security/cve/CVE-2026-42169
• https://bugzilla.redhat.com/show_bug.cgi?id=2461725

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