CVE-2026-40494 (GCVE-0-2026-40494)

Vulnerability from cvelistv5 – Published: 2026-04-18 01:42 – Updated: 2026-04-20 14:55
VLAI
Title
SAIL has heap buffer overflow in TGA RLE decoder — raw packet path missing bounds check
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-20 14:47 UTC
CWE
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8044 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
HappySeaFox sail Affected: < 45d48d1f2e8e0d73e80bc1fd5310cb57f4547302
guessed Create a notification for this product.
Show details on NVD website
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