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.
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Fri, 06 Feb 2026 21:15:00 +0000
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Fri, 06 Feb 2026 20:00:00 +0000
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| Description | 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. | |
| Title | SandboxJS has a Sandbox Escape | |
| Weaknesses | CWE-94 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-02-06T20:19:06.992Z
Reserved: 2026-02-03T01:02:46.715Z
Link: CVE-2026-25587
Updated: 2026-02-06T20:18:50.761Z
Status : Received
Published: 2026-02-06T20:16:10.930
Modified: 2026-02-06T21:16:17.550
Link: CVE-2026-25587
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OpenCVE Enrichment
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