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)
{
"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"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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