CVE-2021-23594

10.0 criticalEPSS 1.8%

Critical (10.0) in agoric realms-shim. EPSS 1.8% chance of exploitation in the next 30 days.

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector.

Severity

10.0 critical

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

EPSS: 1.8% chance of exploitation in the next 30 days; higher than 78% of CVEs (scores of 2026-10-31)
CWE: CWE-1321
Published: 2022-01-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-pwm7-qr6j-3vjg	npm	realms-shim	<=1.2.2	no fix published