CVE-2026-120438
7.8 HIGHpublic exploit availablePublished 2026-11-02 · Updated 2026-11-02
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
QuickJS-NG before 0.16.0 contains an integer overflow in js_proxy_get_own_property_names() in quickjs.c that causes a heap buffer overflow on 32-bit hosts. Attackers running JavaScript can return a large array-like object from a Proxy ownKeys trap to wrap the allocation size, causing crashes or potential code execution.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-190
Public exploit & PoC references
All references
- https://github.com/quickjs-ng/quickjs/blob/v0.15.1/quickjs.c#L51509
- https://github.com/quickjs-ng/quickjs/commit/252209d99cf112568160548bdcaa98d95e0d0068
- https://github.com/quickjs-ng/quickjs/releases/tag/v0.16.0
- https://github.com/quickjs-ng/quickjs/security/advisories/GHSA-jp52-chwg-2p9p
- https://www.vulncheck.com/advisories/quickjs-ng-before-0.16.0-heap-buffer-overflow-via-proxy-ownkeys-enumeration
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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