{"id":"GHSA-66m8-c62j-h6v5","aliases":[],"url":"https://o3.security/vulnerability/GHSA-66m8-c62j-h6v5","summary":"jxl-oxide: `FrameBuffer::new` creates out-of-bounds slices on overflow","details":"### Summary\n`jxl-oxide` exposes a public safe API that can construct an undersized `FrameBuffer` due to unchecked `usize` multiplication, which immediately trigger panic while initializing the buffer in normal decoding path.\n\nAdditionally, calling the safe grouped buffer accessors afterward can create invalid oversized slices from a much smaller allocation, causing undefined behavior; however normal decoding path never reaches UB, because these methods are never used within `jxl-oxide`.\n\n### Impact\nOn 32-bit platforms this can cause panic by accessing out-of-range indices, making it a DoS vulnerability.","published":"2026-07-02T20:45:10Z","modified":"2026-07-02T21:00:16.924670013Z","cvss":{"score":6.2,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"jxl-oxide","fixedVersion":"0.12.6"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/tirr-c/jxl-oxide/security/advisories/GHSA-66m8-c62j-h6v5"},{"type":"PACKAGE","url":"https://github.com/tirr-c/jxl-oxide"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-02T21:00:16.924670013Z"}}