CVE-2025-55130 (GCVE-0-2025-55130)

Vulnerability from cvelistv5 – Published: 2026-01-20 20:41 – Updated: 2026-01-22 04:55
VLAI?
Summary
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.
Severity ?
7.1 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-289 - Authentication Bypass by Alternate Name
Assigner
References
Impacted products
Vendor Product Version
nodejs node Affected: 20.19.6 , ≤ 20.19.6 (semver)
Affected: 22.21.1 , ≤ 22.21.1 (semver)
Affected: 24.12.0 , ≤ 24.12.0 (semver)
Affected: 25.2.1 , ≤ 25.2.1 (semver)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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