CVE-2026-52834

Published: Ago 19, 2026 Last Modified: Ago 19, 2026

ExploitDB:

Other exploit source:

Google Dorks:

HIGH 7,3

Source: [email protected]

Attack Vector: local

Attack Complexity: high

Privileges Required: none

User Interaction: none

Scope: changed

Confidentiality: low

Integrity: low

Availability: high

Description

AI Translation Available

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.

122

Heap-based Buffer Overflow

Draft

Abstraction: Variant Structure: Simple

Common Consequences

Security Scopes Affected:

Availability Integrity Confidentiality Access Control Other

Potential Impacts:

Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Execute Unauthorized Code Or Commands Bypass Protection Mechanism Modify Memory Other

Applicable Platforms

Languages: Memory-Unsafe, C, C++

Likelihood of Exploit: High

View CWE Details

131

Incorrect Calculation of Buffer Size

Draft

Abstraction: Base Structure: Simple

Common Consequences

Security Scopes Affected:

Integrity Availability Confidentiality

Potential Impacts:

Dos: Crash, Exit, Or Restart Execute Unauthorized Code Or Commands Read Memory Modify Memory

Applicable Platforms

Languages: Memory-Unsafe, C, C++

Likelihood of Exploit: High

View CWE Details

190

Integer Overflow or Wraparound

Stable

Abstraction: Base Structure: Simple

Common Consequences

Security Scopes Affected:

Availability Integrity Confidentiality Access Control Other

Potential Impacts:

Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Memory) Dos: Instability Modify Memory Execute Unauthorized Code Or Commands Bypass Protection Mechanism Alter Execution Logic Dos: Resource Consumption (Cpu)