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CVE-2026-25142GHSA-9P4W-FQ8M-2HP7

SandboxJS Prototype Pollution -> Sandbox Escape -> RCE

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 0.8.27
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

Summary

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.27, SanboxJS does not properly restrict lookupGetter which can be used to obtain prototypes, which can be used for escaping the sandbox / remote code execution. This vulnerability is fixed in 0.8.27.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  3. Record last updated

Affected versions

  • nyariv SandboxJS

    fixed in 0.8.27

  • @nyariv/sandboxjsnpm

    fixed in 0.8.27

References 3

GitHub · nyariv/SandboxJS