{"id":"UBUNTU-CVE-2026-54626","details":"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, the TGA_INDEXED_RLE path selected by image_type == 9 allocates an image buffer using the one-byte-per-pixel SAIL_PIXEL_FORMAT_BPP8_INDEXED format returned by tga_private_sail_pixel_format() in src/sail-codecs/tga/helpers.c, while sail_codec_load_frame_v8_tga() in src/sail-codecs/tga/tga.c derives a two-to-four-byte pixel_size from an attacker-controlled header bpp value from 9 through 32. Loading a crafted color-mapped run-length-encoded TGA through sail_load_from_file() or sail_load_from_memory() therefore writes attacker-controlled bytes beyond the heap pixel buffer. The pixel-count clamp added for CVE-2026-40494 does not constrain the per-pixel write width, so this issue is an incomplete fix of that vulnerability and can cause heap corruption, a reliable crash, or potential code execution. This issue is fixed in version 1.0.0.","modified":"2026-09-21T21:39:46.792973224Z","published":"2026-09-21T00:00:00Z","upstream":["CVE-2026-54626"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-54626"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-54626"},{"type":"REPORT","url":"https://github.com/HappySeaFox/sail/security/advisories/GHSA-744p-cqg2-m33h"},{"type":"REPORT","url":"https://github.com/HappySeaFox/sail/commit/fa24bceb93958ad665dbc3cf6b49a1079ab12559"},{"type":"REPORT","url":"https://github.com/HappySeaFox/sail/commit/fa24bceb93958ad665dbc3cf6b49a1079ab12559"},{"type":"REPORT","url":"https://github.com/HappySeaFox/sail/releases/tag/v1.0.0"}],"affected":[{"package":{"name":"sail","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/sail?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.0+repack-1","0.9.0+repack-2","0.9.0+repack-2.1","0.9.0+repack-2.1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libsail-c++0t64","binary_version":"0.9.0+repack-2.1build1"},{"binary_name":"libsail-common0t64","binary_version":"0.9.0+repack-2.1build1"},{"binary_version":"0.9.0+repack-2.1build1","binary_name":"libsail-manip0t64"},{"binary_name":"libsail0t64","binary_version":"0.9.0+repack-2.1build1"},{"binary_name":"sail-codecs","binary_version":"0.9.0+repack-2.1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54626.json"}},{"package":{"name":"sail","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/sail?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.9-1","0.9.10-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libsail-c++0t64","binary_version":"0.9.10-1"},{"binary_version":"0.9.10-1","binary_name":"libsail-common0t64"},{"binary_name":"libsail-manip0t64","binary_version":"0.9.10-1"},{"binary_version":"0.9.10-1","binary_name":"libsail0t64"},{"binary_version":"0.9.10-1","binary_name":"sail-codecs"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54626.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}