MediumVulnerability
CVE-2026-25533: Enclave JavaScript sandbox escape through dynamic property access bypass
- Source
- NVD(opens in a new tab)
- Identifier
- CVE-2026-25533
- Published
- Record updated
- Affected
- enclave-vm <= 2.7.0
- @enclave-vm/core < 2.10.1, fixed in 2.10.1, released February 2, 2026, 3 days before disclosure
- Known exploitation
- Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
- EPSS
- 0.3%
Summary
CVE-2026-25533 affects Enclave, a secure JavaScript sandbox for AI agent code execution, in versions prior to 2.10.1. The sandbox's existing protections in enclave-vm can be bypassed in three ways: AST sanitization through dynamic property accesses, incomplete hardening of error objects around the vm module, and the function constructor access prevention through host object references. GitHub rates it CVSS 4.0 6.4 (Medium), with a local attack vector and no privileges or user interaction required.
Mitigation
Fixed in 2.10.1.
Topics
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