GHSA-6jg8-7333-554w – realms-shim

Package

Manager: npm
Name: realms-shim
Vulnerable Version: >=0 <1.2.0

Severity

Level: Critical

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: N/A pctlN/A

Details

Sandbox Breakout in realms-shim Versions of `realms-shim` prior to 1.2.0 are vulnerable to a Sandbox Breakout. `Reflect.construct` can be used on the sandboxed Function constructor to reach the prototypes of the primal Realm, which may allow an attacker to escape the sandbox and execute arbitrary code. ## Recommendation Upgrade to version 1.2.0 or later.

Metadata

Created: 2019-10-04T17:56:12Z
Modified: 2021-09-02T16:40:48Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/10/GHSA-6jg8-7333-554w/GHSA-6jg8-7333-554w.json
CWE IDs: []
Alternative ID: N/A
Finding: F115
Auto approve: 1