GHSA-62WC-JJ78-F4F6

Vulnerability from github – Published: 2026-01-20 21:31 – Updated: 2026-06-30 03:35
VLAI
Details

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
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-55130"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-281",
      "CWE-289"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-20T21:16:03Z",
    "severity": "HIGH"
  },
  "details": "A flaw in Node.js\u2019s 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.\nThis vulnerability affects users of the permission model on Node.js v20,  v22,  v24, and v25.",
  "id": "GHSA-62wc-jj78-f4f6",
  "modified": "2026-06-30T03:35:27Z",
  "published": "2026-01-20T21:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55130"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-55130.json"
    },
    {
      "type": "WEB",
      "url": "https://nodejs.org/en/blog/vulnerability/december-2025-security-releases"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2431352"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-55130"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7387"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7386"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:6431"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:6402"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:2899"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:2864"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:2783"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:2782"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:2781"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:2768"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:2767"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:2422"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:2421"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:2420"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:1843"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:1842"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • 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.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.


Detection rules are retrieved from Rulezet.