CVE-2026-52834
Açıklama (NVD)
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.
Yayın: 19.08.2026 · Son değişiklik: 27.10.2026 · Zayıflık: CWE-122, CWE-131, CWE-190
CVSS 3.1 metrikleri
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H
| Saldırı vektörü | Yerel |
| Karmaşıklık | Yüksek |
| Gereken yetki | Yok |
| Kullanıcı etkileşimi | Gerekmez |
| Kapsam | Değişir |
| Gizlilik | Düşük |
| Bütünlük | Düşük |
| Erişilebilirlik | Yüksek |
Hesaplanan temel puan: 7.3. CVSS hesaplayıcıda incele