GHSA-P5WG-G6QR-C7CG

Vulnerability from github – Published: 2026-01-26 18:31 – Updated: 2026-02-03 17:43
VLAI?
Summary
Withdrawn Advisory: eslint has a Stack Overflow when serializing objects with circular references
Details

Withdrawn Advisory

This advisory has been withdrawn because RuleTester is used for testing rules during development and results in a error rather than crashing the application.

Original Description

There is a Stack Overflow vulnerability in eslint before 9.26.0 when serializing objects with circular references in eslint/lib/shared/serialization.js. The exploit is triggered via the RuleTester.run() method, which validates test cases and checks for duplicates. During validation, the internal function checkDuplicateTestCase() is called, which in turn uses the isSerializable() function for serialization checks. When a circular reference object is passed in, isSerializable() enters infinite recursion, ultimately causing a Stack Overflow.

Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "eslint"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.26.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-50537"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-29T14:58:17Z",
    "nvd_published_at": "2026-01-26T16:15:58Z",
    "severity": "MODERATE"
  },
  "details": "## Withdrawn Advisory\nThis advisory has been withdrawn because RuleTester is used for testing rules during development and results in a error rather than crashing the application.\n\n## Original Description\n\nThere is a Stack Overflow vulnerability in eslint before 9.26.0 when serializing objects with circular references in `eslint/lib/shared/serialization.js`. The exploit is triggered via the `RuleTester.run()` method, which validates test cases and checks for duplicates. During validation, the internal function `checkDuplicateTestCase()` is called, which in turn uses the `isSerializable()` function for serialization checks. When a circular reference object is passed in, `isSerializable()` enters infinite recursion, ultimately causing a Stack Overflow.",
  "id": "GHSA-p5wg-g6qr-c7cg",
  "modified": "2026-02-03T17:43:56Z",
  "published": "2026-01-26T18:31:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-50537"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eslint/eslint/issues/19646"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eslint/eslint/commit/d683aebc8e0792e4f80bd1488c705c90f22c317e"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/lyyffee/2ee1815e5c2da82c05e9838b9bfefbbc"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/eslint/eslint"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Withdrawn Advisory: eslint has a Stack Overflow when serializing objects with circular references",
  "withdrawn": "2026-02-03T17:43:56Z"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.