Vulnerability Description
SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. In 0.9.10 and earlier, psd_private_sail_pixel_format() in src/sail-codecs/psd/helpers.c resolves a one-channel PSD in Bitmap color mode to SAIL_PIXEL_FORMAT_BPP1_INDEXED without requiring the file depth to be one, so the pixel buffer uses one-bit rows while sail_codec_load_frame_v8_psd() in src/sail-codecs/psd/psd.c accepts depth == 8 and writes one attacker-controlled byte per pixel. Loading a crafted PSD through sail_load_from_file() or sail_load_from_memory() therefore writes beyond each heap row, causing memory corruption, a reliable crash, or potential code execution. This mode/depth mismatch is distinct from GHSA-rcqx-gc76-r9mv and GHSA-wcj8-hxxf-pq2c. This issue is fixed in version 1.0.0.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/HappySeaFox/sail/commit/f44a8b779a1fc527fc6bc5caa71a66a8ed940
- https://github.com/HappySeaFox/sail/releases/tag/v1.0.0
- https://github.com/HappySeaFox/sail/security/advisories/GHSA-ccqf-rv86-h3wm
- https://github.com/HappySeaFox/sail/security/advisories/GHSA-ccqf-rv86-h3wm
FAQ
What is CVE-2026-54627?
CVE-2026-54627 is a vulnerability with a CVSS score of 9.8 (CRITICAL). SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. In 0.9.10 and earlier, psd_private_sail_pixel_format() in src/sail-codecs/psd/hel...
How severe is CVE-2026-54627?
CVE-2026-54627 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-54627?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.