{"id":"CVE-2026-3950","details":"A vulnerability was identified in strukturag libheif up to 1.21.2. This impacts the function Track::load of the file libheif/sequences/track.cc of the component stsz/stts. The manipulation leads to out-of-bounds read. The attack needs to be performed locally. The exploit is publicly available and might be used. Applying a patch is the recommended action to fix this issue. The patch available is inofficial and not approved yet.","modified":"2026-03-15T22:46:52.096860Z","published":"2026-03-11T20:16:22.567Z","references":[{"type":"WEB","url":"https://vuldb.com/?ctiid.350382"},{"type":"WEB","url":"https://vuldb.com/?id.350382"},{"type":"WEB","url":"https://vuldb.com/?submit.766431"},{"type":"WEB","url":"https://github.com/Niebelungen-D/pocs/tree/main/heif_dec_sequence_chunk_idx_oob"},{"type":"WEB","url":"https://github.com/strukturag/libheif/"},{"type":"REPORT","url":"https://github.com/strukturag/libheif/issues/1715"},{"type":"FIX","url":"https://github.com/strukturag/libheif/pull/1721"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3950.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"}]}