{"id":"CVE-2026-52834","revision":"42b0ac2fe3aa419e8ea1abd08d5d666c","records":[{"revision":"42b0ac2fe3aa419e8ea1abd08d5d666c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-52834","aliases":[],"title":"jxl-oxide: Out-of-bounds writes due to integer overflow in jxl-grid on 32-bit platforms","description":"jxl-oxide is a pure Rust implementation of a JPEG XL decoder. Prior to jxl-grid 0.6.2, decoding a crafted JPEG XL image on a 32-bit platform can overflow length calculations in AlignedGrid::with_alloc_tracker and related grid and subgrid arithmetic. A 65536 x 65536 frame can pass the frame-area limit while overflowing the usize element count, causing modular, VarDCT, or filter rendering paths to allocate a backing buffer smaller than the logical grid. A tiny bitstream-controlled cropped frame combined with a huge canvas or requested region can also reach the vulnerable composition path in crates/jxl-render/src/blend.rs through ordinary render_frame(). Later mutable subgrid and raw-pointer operations can then perform attacker-controlled out-of-bounds writes, causing memory corruption, denial of service, or arbitrary code execution. This issue is fixed in jxl-grid version 0.6.2.","state":0,"publishedAt":"2026-08-19T14:55:32.138+00:00","modifiedAt":"2026-08-19T18:19:05.526+00:00","affected":[{"ecosystem":"Vendor product","name":"jxl-oxide","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"tirr-c\",\n                    \"product\": \"jxl-oxide\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.12.6\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"jxl-grid","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"tirr-c\",\n                    \"product\": \"jxl-grid\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.6.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H","score":7.3,"severity":"HIGH"}],"references":["https://github.com/tirr-c/jxl-oxide/security/advisories/GHSA-5pmv-rx8r-wmv5","https://github.com/tirr-c/jxl-oxide/commit/3986dadd3926a95656a642e74a0702d52f5c92e2","https://github.com/tirr-c/jxl-oxide/releases/tag/0.12.6","https://rustsec.org/advisories/RUSTSEC-2026-0151.html"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-52834","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-52834","identifiers":["CVE-2026-52834"]},"retained":false,"historicalAffected":[]}],"coverage":[]}