CVE-2021-23594

critical

Description

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

References

https://www.npmjs.com/package/realms-shim

https://snyk.io/vuln/SNYK-JS-REALMSSHIM-2309907

Details

Source: Mitre, NVD

Published: 2022-01-10

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 10

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

Severity: Critical

EPSS

EPSS: 0.00528