CVE-2026-35444
Last modified
CVE-2026-35444 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. SDL_image is a library to load images of various formats as SDL surfaces. In do_layer_surface() in src/IMG_xcf.c, pixel index values from decoded XCF tile data are used directly as colormap indices without validating them against the colormap size (cm_num). EPSS estimates a 0.26% chance of exploitation in the next 30 days.
Description
SDL_image is a library to load images of various formats as SDL surfaces. In do_layer_surface() in src/IMG_xcf.c, pixel index values from decoded XCF tile data are used directly as colormap indices without validating them against the colormap size (cm_num). A crafted .xcf file with a small colormap and out-of-range pixel indices causes heap out-of-bounds reads of up to 762 bytes past the colormap allocation. Both IMAGE_INDEXED code paths are affected (bpp=1 and bpp=2). The leaked heap bytes are written into the output surface pixel data, making them potentially observable in the rendered image. This vulnerability is fixed with commit 996bf12888925932daace576e09c3053410896f8.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Libsdl | Sdl Image | < 2026-04-02 |
References
- https://github.com/libsdl-org/SDL_image/security/advisories/GHSA-gq8w-x74c-h6p7Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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