Sandbox Breakout / Prototype Pollution in notevil
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
Versions of `notevil` prior to 1.3.3 are vulnerable to Sandbox Escape leading to Prototype pollution. The package fails to restrict access to the main context, allowing attacker to add or modify an object's prototype. Evaluating the payload ```try{a[b];}catch(e){e.constructor.constructor('return __proto__.arguments.callee.__proto__.polluted=true')()}``` add the `polluted` property to Function. ## Recommendation Upgrade to version 1.3.3 or later.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | notevil (npm) | before 1.3.3 | 1.3.3 | Patch available | GHSA-9gxr-rhx6-4jgv |
- notevil (npm) Vendor— Affected before 1.3.3 Fixed in 1.3.3 Patch available GHSA-9gxr-rhx6-4jgv
Remediation
- Fix · GHSA-9gxr-rhx6-4jgv notevil (npm) Fixed in 1.3.3 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-9gxr-rhx6-4jgv
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences