{"id":"RUSTSEC-2026-0460","summary":"Panic on chroma QP offsets enabled with an empty offset list","details":"An HEVC Range Extensions stream can set `cu_chroma_qp_offset_enabled_flag` in a\nslice while its picture parameter set carries an empty chroma QP offset list.\nThe decoder then read the list at the signalled index, which panicked on the\nout-of-range access. A panic aborts the decoding thread, or the whole process\nwhen built with `panic = \"abort\"`. The crate forbids `unsafe` code, so there is\nno memory corruption.\n\nAny application that decodes untrusted HEIC files or HEVC streams with\n`heifer-hevc-dec`, directly or through the `heifer` crate, is affected.\n\nThe flaw was corrected in 0.3.27 (commit\n[`1a8426e`](https://github.com/HarpeLm/Heifer/commit/1a8426e1b41160fb48d8baf8be858238570a8093)):\nwith an empty list there is no offset to apply, and the offset is zero.","aliases":["GHSA-rmc9-8qp4-gjhx"],"modified":"2026-11-09T10:15:02.433477015Z","published":"2026-11-04T12:00:00Z","database_specific":{"license":"CC0-1.0"},"references":[{"type":"PACKAGE","url":"https://crates.io/crates/heifer-hevc-dec"},{"type":"ADVISORY","url":"https://rustsec.org/advisories/RUSTSEC-2026-0460.html"},{"type":"WEB","url":"https://github.com/HarpeLm/Heifer/commit/1a8426e1b41160fb48d8baf8be858238570a8093"}],"affected":[{"package":{"name":"heifer-hevc-dec","ecosystem":"crates.io","purl":"pkg:cargo/heifer-hevc-dec"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"0.3.27"}]}],"ecosystem_specific":{"affects":{"arch":[],"os":[],"functions":[]},"affected_functions":null},"database_specific":{"categories":["denial-of-service"],"cvss":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","informational":null,"source":"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0460.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}