CRITICALCVE-2026-25587Published Modified CNA GitHub_M
CVE-2026-25587: SandboxJS has a Sandbox Escape
SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, as Map is in SAFE_PROTOYPES, it's prototype can be obtained via Map.prototype. By overwriting Map.prototype.has the sandbox can be escaped. This vulnerability is fixed in 0.8.29.
Metrics
- CVSS v3.1
- 10.0
- Severity
- CRITICAL
- Fixed in
- —
- Affected Products
- 1
Affected packages
- nyariv / SandboxJS< 0.8.29
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H