{"id":"CVE-2026-59959","published":"2026-10-28T14:17:05.240","lastModified":"2026-10-28T14:17:05.380","description":"SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. Prior to version 1.0.2, the built-in WebP decoder can crash during loader initialization when processing a malformed animated WebP file with inconsistent container or `ANMF` frame metadata. In `sail_codec_load_init_v8_webp()` in `src/sail-codecs/webp/webp.c`, `WebPDemuxGetI` with `WEBP_FF_CANVAS_WIDTH` can return a zero `image_local->width`, which is then used as a divisor when calculating `bytes_per_pixel` from the image row size. The division happens before frame decoding and before generic image skeleton validation in `src/sail/sail_advanced.c`, causing an arithmetic fault and process termination. Applications accepting untrusted WebP images can consequently suffer denial of service; builds must include the affected WebP codec. This issue is fixed in version 1.0.2.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-369"],"vendors":[],"products":[],"references":[{"url":"https://github.com/HappySeaFox/sail/commit/495660135a4c62e416a1b357a4381dd30069229d","tags":[]},{"url":"https://github.com/HappySeaFox/sail/security/advisories/GHSA-5g8g-g347-84m8","tags":[]},{"url":"https://github.com/HappySeaFox/sail/tree/v1.0.2","tags":[]}],"exploitRefs":[{"url":"https://github.com/HappySeaFox/sail/commit/495660135a4c62e416a1b357a4381dd30069229d","tags":[]},{"url":"https://github.com/HappySeaFox/sail/security/advisories/GHSA-5g8g-g347-84m8","tags":[]},{"url":"https://github.com/HappySeaFox/sail/tree/v1.0.2","tags":[]}],"hasPoc":true,"ai":null}