CVE-2021-23594

Sandbox Bypass

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

Affected

realms-shim

CVSS v3.1 NVD

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

CVSS v3.1 SNYK

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

CVSS v2.0 NVD

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

1.76% chance of exploitation in the next 30 days, 78th percentile

Published

2022-01-07

Updated

2024-09-17

Proof-of-concept exploits (1)

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

Security advisories

• https://www.npmjs.com/package/realms-shim
• advisories/GHSA-pwm7-qr6j-3vjg

References

• CVE Record
• NVD entry