CVE-2021-23543: Agoric Realms-Shim

Critical severity, CVSS 9.8. 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.

Affected products

• Agoric Realms-Shim: any version

Published 2022-01-10. Last modified 2026-06-17.