CVE-2021-23452

9.8 criticalEPSS 1.6%

Critical (9.8) in binaryops x-assign. EPSS 1.6% chance of exploitation in the next 30 days.

This affects all versions of package x-assign. The global proto object can be polluted using the __proto__ object.

Severity

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)
CWE: CWE-1321
Published: 2021-10-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-4mvj-rq4v-2fxw	npm	x-assign	<=0.1.4	no fix published