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Github Security Blog
Github Security Blog
•added 2026/01/27 7:55 p.m.•36 views

SandboxJS has Sandbox Escape via Unprotected AsyncFunction Constructor

Summary A sandbox escape vulnerability due to AsyncFunction not being isolated in SandboxFunction Details The library attempts to sandbox code execution by replacing the global Function constructor with a safe, sandboxed version SandboxFunction. This is handled in utils.ts by mapping Function to...

10CVSS6.8AI score0.01248EPSS
SaveExploits1References4Affected Software1
OSV
OSV
•added 2026/01/27 7:55 p.m.•9 views

GHSA-WXHW-J4HC-FMQ6 SandboxJS has Sandbox Escape via Unprotected AsyncFunction Constructor

Summary A sandbox escape vulnerability due to AsyncFunction not being isolated in SandboxFunction Details The library attempts to sandbox code execution by replacing the global Function constructor with a safe, sandboxed version SandboxFunction. This is handled in utils.ts by mapping Function to...

10CVSS6.3AI score0.01248EPSS
SaveExploits1References4
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