CVE-2026-42169
High
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.
SeverityHigh
CVSS7.3
Exploit probability—
Product
Redhat Enterprise Linux
PublishedAug 4, 2026
First seenAug 4, 2026
Weakness typeCWE-131CWE-131
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redhat enterprise_linux | 9.0 | — |
| redhat enterprise_linux_eus | 9.6 | — |
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