PT-2026-33587 · Sail · Sail

Published 2026-04-18 · Updated 2026-04-20 · CVE-2026-40494

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions SAIL versions prior to commit 45d48d1f2e8e0d73e80bc1fd5310cb57f4547302

Description SAIL is a cross-platform library used for loading and saving images, supporting animation, metadata, and ICC profiles. The TGA codec's RLE decoder in tga.c contains an asymmetric bounds check. While the run-packet path correctly clamps the repeat count to the remaining buffer space, the raw-packet path lacks an equivalent check. This allows writing up to 496 bytes of attacker-controlled data beyond the end of a heap buffer.

Recommendations Update to the version containing commit 45d48d1f2e8e0d73e80bc1fd5310cb57f4547302.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-40494

Affected Products

Sail

References · 12

• https://nvd.nist.gov/vuln/detail/CVE-2026-40494 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-40494 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-40494 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-40494 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-40494 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-40494 · Vendor Advisory
• https://github.com/HappySeaFox/sail/security/advisories/GHSA-cp2j-rwh4-r46f · Note
• https://github.com/HappySeaFox/sail/commit/45d48d1f2e8e0d73e80bc1fd5310cb57f4547302 · Note
• https://twitter.com/0dayPublishing/status/2046245010924789955 · Twitter Post
• https://twitter.com/PurpleOps_io/status/2045889307081109913 · Twitter Post
• https://twitter.com/CVEnew/status/2045467325382435290 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2045403957254660464 · Twitter Post