{"id":"CVE-2026-117557","aliases":[],"title":"SDL_image through 3.4.8 and 2.8.12 Stack Out-of-Bounds Read in ILBM Loader","description":"SDL_image through 3.4.8 and through 2.8.12 contains a stack out-of-bounds read vulnerability in IMG_LoadLBM_IO() in src/IMG_lbm.c that skips bitplane count validation when HAM mode is set. Attackers can supply a crafted ILBM file with more than 8 HAM bitplanes to read past the colormap stack array, causing crashes or disclosing stack memory.","severity":"medium","score":6.9,"published":"2026-10-27T13:07:52.419Z","modified":"2026-10-27T13:07:52.419Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/libsdl-org/SDL_image/issues/769","https://github.com/libsdl-org/SDL_image","https://github.com/libsdl-org/SDL_image/commit/5cfbe85f3a783417eec4d5aa0660b40c2cff5292","https://github.com/libsdl-org/SDL_image/commit/9c0622c36cf01e9ecba4bfdd6c4aa2b21c8cf996","https://github.com/libsdl-org/SDL_image/blob/release-3.4.8/src/IMG_lbm.c#L240","https://www.vulncheck.com/advisories/sdl-image-through-3.4.8-and-2.8.12-stack-out-of-bounds-read-in-ilbm-loader"],"sources":[{"name":"CVE","id":"CVE-2026-117557","modified":"2026-10-27T13:07:52.419Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-117557"}],"assessments":[{"source":"CNA","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","score":6.9},{"source":"CNA","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","score":6.1}]}