CVE-2026-40494

CVE-2026-40494 · SAIL has heap buffer overflow in TGA RLE decoder — raw packet path missing bounds check

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SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. Prior to commit 45d48d1f2e8e0d73e80bc1fd5310cb57f4547302, the TGA codec's RLE decoder in `tga.c` has an asymmetric bounds check vulnerability. The run-packet path (line 297) correctly clamps the repeat count to the remaining buffer space, but the raw-packet path (line 305-311) has no equivalent bounds check. This allows writing up to 496 bytes of attacker-controlled data past the end of a heap buffer. Commit 45d48d1f2e8e0d73e80bc1fd5310cb57f4547302 patches the issue.

CVSS 9.8 · Critique · EPSS 0,3% · Correctif disponible

Publication

2026-04-18T01:42:48.830Z

Mise à jour

2026-04-20T14:55:42.859Z

Pile logicielle: system

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