What’s Vulnerable › Vulnerabilities
CVE-2026-42169: Gimp: gimp apng loader heap-buffer-overflow when fctl width exceeds ihdr width (file-png.c)
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-04 · updated 2026-10-12
- Weakness: CWE-131
Description
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.
Affected products
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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