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CVE-2025-55130

Critical · CVSS 9.1

Node.js — Permission Model bypass via relative symlink path traversal (arbitrary file read/write)

CVSS
9.1
nvd
EPSS
—
KEV
No
Class
oss containerizable
CWE-289, CWE-281

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.

Search profile — drives PoC discovery

Symbols --allow-fs-read--allow-fs-writePermissionsModelrelative symlinkpath traversalsymlink chainingcheckFSAccessresolvePathrealpathpermission model
Keywords CVE-2025-55130Node.js permission model bypasssymlink path traversalallow-fs-read bypassallow-fs-write bypassrelative symlink escapeNode.js arbitrary file readNode.js permission model exploitNode.js v20 v22 v24 v25 symlinkNode.js PoC permission bypass
Versions: v20, v22, v24, v25

Ranked PoCs (1) — best first

Heuristic ranking — not yet expert-vetted. Scored on structure + provenance, not execution.

Recall-favoring discovery; ranking by the Stage-4 scorer (Adam's rubric). Scanner/aggregator repos are hidden.

References

Status: enriched · ingested 2026-06-30T06:00:22.000Z · profiled 2026-06-30T18:30:14.000Z