Heap-Based Buffer Overflow in quickjs-ng quickjs.js_typed_array_sort

Publication date: 2026-01-10

Last updated on: 2026-04-29

Assigner: VulDB

Description

A vulnerability was identified in quickjs-ng quickjs up to 0.11.0. This issue affects the function js_typed_array_sort of the file quickjs.c. The manipulation leads to heap-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The identifier of the patch is 53eefbcd695165a3bd8c584813b472cb4a69fbf5. To fix this issue, it is recommended to deploy a patch.

CVSS Scores

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Meta Information

Published

2026-01-10

Last Modified

2026-04-29

Generated

2026-07-06

AI Q&A

2026-01-10

EPSS Evaluated

2026-07-05

NVD

CVE-2026-0822

Affected Vendors & Products

Vendor	Product	Version / Range
quickjs-ng	quickjs	to 0.11.0 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-122	A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
CWE-119	The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

Executive Summary

This vulnerability exists in the quickjs-ng quickjs library up to version 0.11.0, specifically in the js_typed_array_sort function within the quickjs.c file. It causes a heap-based buffer overflow due to improper manipulation during sorting. This flaw can be exploited remotely, and an exploit is publicly available. Applying the provided patch is recommended to fix the issue.

Impact Analysis

The vulnerability can lead to a heap-based buffer overflow, which may allow an attacker to execute arbitrary code remotely. This can compromise the affected system's integrity, confidentiality, and availability, potentially leading to unauthorized access or system crashes.

Mitigation Strategies

To mitigate this vulnerability, it is recommended to deploy the patch identified by commit 53eefbcd695165a3bd8c584813b472cb4a69fbf5 that fixes the issue in quickjs-ng quickjs up to version 0.11.0.

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