CVE-2026-120438 — Vulnerability intelligence
—
Published:
- CVSS
- 8.5
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
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.