Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-52834— jxl-oxide: Out-of-bounds writes due to integer overflow in jxl-grid on 32-bit platforms

Quick assessment

Affected
tirr-c jxl-oxide
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

jxl-oxide 是一个纯 Rust 实现的 JPEG XL 解码器。在 jxl-grid 0.6.2 版本之前，在 32 位平台上解码精心构造的 JPEG XL 图像时，可能会在 及相关网格和子网格的算术运算中导致长度计算溢出。一个 65536 x 65536 分辨率的帧可以通过帧面积限制检查，但其 类型的元素计数却发生溢出，从而导致模块化（Modular）、VarDCT 或滤镜渲染路径分配的实际缓冲区大小小于逻辑网格所需的大小。 此外，结合由位流控制的极小裁剪帧与超大画布或请求区域，也可通过 中的普通 函数触

CVSS 7.3 · High EPSS 0.13% · P3

Affected Version Matrix 2

VendorProduct Version RangeStatus
tirr-c jxl-grid < 0.6.2 affected
tirr-c jxl-oxide < 0.12.6 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-52834

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
jxl-oxide: Out-of-bounds writes due to integer overflow in jxl-grid on 32-bit platforms
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
tirr-c jxl-oxide < 0.12.6 -
tirr-c jxl-grid < 0.6.2 -

II. Public POCs for CVE-2026-52834

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8267 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-52834

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-52834 (1)

Vendor Advisories for CVE-2026-52834 (2)

Vendor Pages for CVE-2026-52834 (1)

IV. Related Vulnerabilities

Same weakness: CWE-122

V. Comments for CVE-2026-52834

No comments yet

Leave a comment