{"id":"CVE-2026-89266","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-89266","summary":"stb_vorbis through 1.22 contains a heap buffer overflow in start_decoder() where the codebook multiplicands allocation size is truncated from size_t to int. Attackers can craft a malicious…","details":"stb_vorbis through 1.22 contains a heap buffer overflow in start_decoder() where the codebook multiplicands allocation size is truncated from size_t to int. Attackers can craft a malicious Ogg Vorbis file with large entries and dimensions values to trigger out-of-bounds writes, causing process crashes or heap corruption.","published":"2026-09-12T00:17:06.440","modified":"2026-09-12T00:17:06.440","cvss":{"score":8.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/nothings/stb"},{"type":"WEB","url":"https://github.com/nothings/stb/blob/2c980bb59875b0d32144a71867fbdebb2f77cd20/stb_vorbis.c#L3878-L3880"},{"type":"WEB","url":"https://github.com/nothings/stb/blob/2c980bb59875b0d32144a71867fbdebb2f77cd20/stb_vorbis.c#L950"},{"type":"WEB","url":"https://github.com/nothings/stb/issues/1928"},{"type":"WEB","url":"https://github.com/nothings/stb/issues/1933"},{"type":"WEB","url":"https://github.com/nothings/stb/issues/1947"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/stb-vorbis-through-1.22-heap-buffer-overflow-via-codebook-multiplicands"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-12T00:17:06.440"}}