A vulnerability was determined in quickjs-ng quickjs up to 0.11.0. This vulnerability affects the function js_typed_array_constructor of the file quickjs.c. Executing a manipulation can lead to heap-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called c5d80831e51e48a83eab16ea867be87f091783c5. A patch should be applied to remediate this issue.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00058.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Quickjs-ng Subscribe
Quickjs Subscribe

Configuration 1 [-]

cpe:2.3:a:quickjs-ng:quickjs:*:*:*:*:*:*:*:*

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Quickjs-ng Subscribe
Quickjs Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/quickjs-ng/quickjs/commit/c5d80831e51e48a83eab16ea867be87f091783c5 cve-icon cve-icon cve-icon
https://github.com/quickjs-ng/quickjs/issues/1296 cve-icon cve-icon cve-icon
https://github.com/quickjs-ng/quickjs/issues/1296#issue-3780003395 cve-icon cve-icon cve-icon
https://github.com/quickjs-ng/quickjs/pull/1299 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-0821 cve-icon
https://vuldb.com/?ctiid.340355 cve-icon cve-icon cve-icon
https://vuldb.com/?id.340355 cve-icon cve-icon cve-icon
https://vuldb.com/?submit.731780 cve-icon cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-0821 cve-icon
History

Thu, 15 Jan 2026 22:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:quickjs-ng:quickjs:*:*:*:*:*:*:*:*

Mon, 12 Jan 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 12 Jan 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Quickjs-ng
Quickjs-ng quickjs
Vendors & Products Quickjs-ng
Quickjs-ng quickjs

Sun, 11 Jan 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Important

Sat, 10 Jan 2026 13:15:00 +0000

Type Values Removed Values Added
Description A vulnerability was determined in quickjs-ng quickjs up to 0.11.0. This vulnerability affects the function js_typed_array_constructor of the file quickjs.c. Executing a manipulation can lead to heap-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called c5d80831e51e48a83eab16ea867be87f091783c5. A patch should be applied to remediate this issue.
Title quickjs-ng quickjs quickjs.c js_typed_array_constructor heap-based overflow
Weaknesses CWE-119
CWE-122
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-01-12T14:36:51.911Z

Reserved: 2026-01-09T18:24:17.150Z

Link: CVE-2026-0821

cve-icon Vulnrichment

Updated: 2026-01-12T14:36:48.964Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-10T13:15:49.040

Modified: 2026-01-15T22:22:36.770

Link: CVE-2026-0821

cve-icon Redhat

Severity : Important

Publid Date: 2026-01-10T13:02:07Z

Links: CVE-2026-0821 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-01-12T14:36:17Z

Weaknesses