CVE-2026-52834
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.
INFO
Published Date :
Aug. 19, 2026, 3:17 p.m.
Last Modified :
Oct. 27, 2026, 1:10 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Update jxl-grid to version 0.6.2 or later.
- Apply vendor patches when available.
- Review all image decoding code.
- Validate input image dimensions.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-52834.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-52834 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-52834
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-52834 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-52834 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Oct. 27, 2026
Action Type Old Value New Value Added Translation Title: Jxl-oxide y Jxl-grid de Tirr-c, Description: jxl-oxide es una implementación pura en Rust de un decodificador JPEG XL. Antes de jxl-grid 0.6.2, la decodificación de una imagen JPEG XL manipulada en una plataforma de 32 bits puede desbordar los cálculos de longitud en AlignedGrid::with_alloc_tracker y la aritmética relacionada de cuadrículas y subcuadrículas. Un fotograma de 65536 x 65536 puede superar el límite del área del fotograma mientras desborda el recuento de elementos usize, haciendo que las rutas de renderizado modular, VarDCT o de filtro asignen un búfer de respaldo más pequeño que la cuadrícula lógica. Un fotograma recortado pequeño controlado por el flujo de bits combinado con un lienzo enorme o una región solicitada también puede alcanzar la ruta de composición vulnerable en crates/jxl-render/src/blend.rs a través de render_frame() ordinario. Operaciones posteriores de subcuadrícula mutable y puntero sin procesar pueden entonces realizar escrituras fuera de límites controladas por el atacante, causando corrupción de memoria, denegación de servicio o ejecución de código arbitrario. Este problema está solucionado en la versión 0.6.2 de jxl-grid. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 19, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-52834', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-19T18:03:40.919161Z'} -
New CVE Received by [email protected]
Aug. 19, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'tirr-c', 'product': 'jxl-oxide', 'versions': [{'status': 'affected', 'version': '< 0.12.6'}]}, {'vendor': 'tirr-c', 'product': 'jxl-grid', 'versions': [{'status': 'affected', 'version': '< 0.6.2'}]}] Added 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. Added CVSS V3.1 AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H Added CWE CWE-190 Added CWE CWE-122 Added CWE CWE-131 Added Reference https://github.com/tirr-c/jxl-oxide/commit/3986dadd3926a95656a642e74a0702d52f5c92e2 Added Reference https://github.com/tirr-c/jxl-oxide/releases/tag/0.12.6 Added Reference https://github.com/tirr-c/jxl-oxide/security/advisories/GHSA-5pmv-rx8r-wmv5 Added Reference https://rustsec.org/advisories/RUSTSEC-2026-0151.html