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SandboxJS Vulnerable to Prototype Pollution -> Sandbox Escape -> RCE

🗓️ 02 Feb 2026 20:17:39Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 4 Views

SandboxJS allows prototype pollution via __lookupGetter__, enabling sandbox escape and code execution.

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18 Feb 2026 23:42Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.110
EPSS0.0022
SSVC
4