A flaw in Node.js’s Permissions model allows attackers to bypass `--allow-fs-read` and `--allow-fs-write` restrictions using crafted relative symlink paths. By chaining directories and symlinks, a script granted access only to the current directory can escape the allowed path and read sensitive files. This breaks the expected isolation guarantees and enables arbitrary file read/write, leading to potential system compromise.
This vulnerability affects users of the permission model on Node.js v20, v22, v24, and v25.
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Affected Vendors & Products
References
History
Tue, 20 Jan 2026 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw in Node.js’s Permissions model allows attackers to bypass `--allow-fs-read` and `--allow-fs-write` restrictions using crafted relative symlink paths. By chaining directories and symlinks, a script granted access only to the current directory can escape the allowed path and read sensitive files. This breaks the expected isolation guarantees and enables arbitrary file read/write, leading to potential system compromise. This vulnerability affects users of the permission model on Node.js v20, v22, v24, and v25. | |
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cvssV3_0
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Status: PUBLISHED
Assigner: hackerone
Published:
Updated: 2026-01-20T20:41:55.393Z
Reserved: 2025-08-07T15:00:05.576Z
Link: CVE-2025-55130
No data.
Status : Received
Published: 2026-01-20T21:16:03.177
Modified: 2026-01-20T21:16:03.177
Link: CVE-2025-55130
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OpenCVE Enrichment
No data.