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[GHSA-p5wg-g6qr-c7cg] eslint has a Stack Overflow when serializing objects with circular references #6758

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[GHSA-p5wg-g6qr-c7cg] eslint has a Stack Overflow when serializing objects with circular references #6758

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8 changes: 3 additions & 5 deletions advisories/github-reviewed/2026/01/GHSA-p5wg-g6qr-c7cg/GHSA-p5wg-g6qr-c7cg.json
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Original file line number Diff line number Diff line change
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{
"schema_version": "1.4.0",
"id": "GHSA-p5wg-g6qr-c7cg",
"modified": "2026-01-29T14:58:17Z",
"modified": "2026-01-29T14:58:19Z",
"published": "2026-01-26T18:31:29Z",
"aliases": [
"CVE-2025-50537"
],
"summary": "eslint has a Stack Overflow when serializing objects with circular references",
"summary": "Not a vulnerability",
"details": "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": [
{
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}
],
"database_specific": {
"cwe_ids": [
"CWE-674"
],
"cwe_ids": [],
"severity": "MODERATE",
"github_reviewed": true,
"github_reviewed_at": "2026-01-29T14:58:17Z",
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