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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://access.redhat.com/security/cve/CVE-2026-42169 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2461725 Issue Tracking, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.8 · redhatNVD modified 2026-10-12 03:17
Affected (CPE criteria) 2
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_eus:9.6:*:*:*:*:*:*:*
References 5
- https://access.redhat.com/errata/RHSA-2026:50817 Issue Tracking
- https://access.redhat.com/errata/RHSA-2026:73768 Issue Tracking
- https://access.redhat.com/errata/RHSA-2026:80509
- https://access.redhat.com/security/cve/CVE-2026-42169 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2461725 Issue Tracking, Vendor Advisory