Is CVE-2026-42169 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-42169?

CVE-2026-42169 has a CVSS v3 severity of HIGH (7.3).

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CVE-2026-42169

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.