{"cve":"CVE-2026-52834","nvd":{"published":"2026-08-19T15:17:09.810","modified":"2026-10-27T13:10:00.360","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"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},"cwes":["CWE-122","CWE-131","CWE-190"],"references":["https://github.com/tirr-c/jxl-oxide/commit/3986dadd3926a95656a642e74a0702d52f5c92e2","https://github.com/tirr-c/jxl-oxide/releases/tag/0.12.6","https://github.com/tirr-c/jxl-oxide/security/advisories/GHSA-5pmv-rx8r-wmv5","https://rustsec.org/advisories/RUSTSEC-2026-0151.html"],"products":[],"source":"nvd","synced_at":"2026-10-27T13:36:07.289888057+00:00"},"epss":{"cve":"CVE-2026-52834","score":0.00174,"percentile":0.06795,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-5pmv-rx8r-wmv5","url":"https://osv.dev/vulnerability/GHSA-5pmv-rx8r-wmv5","summary":"jxl-grid on 32-bit platforms has an out-of-bounds writes due to integer overflow","modified":"2026-07-02T21:11:21.211631010Z","packages":[{"ecosystem":"crates.io","name":"jxl-grid","purl":"pkg:cargo/jxl-grid","ranges":["<0.6.2"],"fixed":["0.6.2"]}]},{"id":"RUSTSEC-2026-0151","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0151","summary":"Out-of-bounds writes due to integer overflow in jxl-grid on 32-bit platforms","modified":"2026-10-12T18:00:13.554286599Z","packages":[{"ecosystem":"crates.io","name":"jxl-grid","purl":"pkg:cargo/jxl-grid","ranges":[">=0.0.0-0 <0.6.2"],"fixed":["0.6.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}