MEDIUMCVSS v3.1 5.3Vulnerability
CVE-2026-120440
QuickJS-NG before 0.16.0 contains a memory leak vulnerability in js_atomics_store() in quickjs.c that fails to free the converted value when returning a RangeError. Attackers running JavaScript can repeatedly call Atomics.store with a valueOf that detaches or shrinks the buffer to exhaust heap memory and cause denial of service.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-11-02T16:55:11.069321+00:00
- Cvss score
- 5.3
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-11-02T16:56:00+00:00
- Score
- 5.3
- Last source
- NVD
- Cvss version
- 3.1
- Cve id
- CVE-2026-120440
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- First seen by Signal
- 2026-11-02T16:50:29+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Published at
- 2026-11-02T15:17:26.103
- Last modified
- 2026-11-02T15:17:26.103
Related Entities (1)
HAS_WEAKNESS (1)
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