Medium severity6.1NVD Advisory· Published Oct 27, 2026· Updated Oct 27, 2026
CVE-2026-117557
CVE-2026-117557
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.
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Affected products
1- Range: <=3.4.8, <=2.8.12
Patches
Vulnerability mechanics
References
5- github.com/libsdl-org/SDL_image/blob/release-3.4.8/src/IMG_lbm.cnvd
- github.com/libsdl-org/SDL_image/commit/5cfbe85f3a783417eec4d5aa0660b40c2cff5292nvd
- github.com/libsdl-org/SDL_image/commit/9c0622c36cf01e9ecba4bfdd6c4aa2b21c8cf996nvd
- github.com/libsdl-org/SDL_image/issues/769nvd
- www.vulncheck.com/advisories/sdl-image-through-3.4.8-and-2.8.12-stack-out-of-bounds-read-in-ilbm-loadernvd
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