Out-of-bounds Write Affecting sail package, versions <0.9.10-2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-SAIL-16104343
- published18 Apr 2026
- disclosed18 Apr 2026
Introduced: 18 Apr 2026
CVE-2026-40494 (opens in a new tab)How to fix?
Upgrade Debian:unstable sail to version 0.9.10-2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream sail package and not the sail package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.