GHSA-HVQ2-WF92-J4F3
Vulnerability from github – Published: 2025-09-26 14:38 – Updated: 2025-09-26 14:38
VLAI?
Summary
express-xss-sanitizer has an unbounded recursion depth
Details
Security Advisory: express-xss-sanitizer
Overview
A vulnerability was discovered in express-xss-sanitizer that allowed unbounded recursion depth during sanitization of nested objects.
Affected Versions
- All versions prior to 2.0.1
Patched Versions
- 2.0.1 and later
Description
The sanitize function in lib/sanitize.js performed recursive sanitization without depth limiting, making it vulnerable to stack overflow attacks via specially crafted deeply nested JSON objects.
Impact
An attacker could cause denial-of-service by sending a request with deeply nested structures, potentially crashing the Node.js process.
Solution
Upgrade to version 2.0.1 or later:
npm install express-xss-sanitizer@latest
Severity ?
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "express-xss-sanitizer"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-59364"
],
"database_specific": {
"cwe_ids": [
"CWE-674"
],
"github_reviewed": true,
"github_reviewed_at": "2025-09-26T14:38:13Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "# Security Advisory: express-xss-sanitizer\n\n## Overview\nA vulnerability was discovered in express-xss-sanitizer that allowed unbounded recursion depth during sanitization of nested objects.\n\n## Affected Versions\n- All versions prior to 2.0.1\n\n## Patched Versions\n- 2.0.1 and later\n\n## Description\nThe sanitize function in lib/sanitize.js performed recursive sanitization without depth limiting, making it vulnerable to stack overflow attacks via specially crafted deeply nested JSON objects.\n\n## Impact\nAn attacker could cause denial-of-service by sending a request with deeply nested structures, potentially crashing the Node.js process.\n\n## Solution\nUpgrade to version 2.0.1 or later:\n\n```bash\nnpm install express-xss-sanitizer@latest\n```",
"id": "GHSA-hvq2-wf92-j4f3",
"modified": "2025-09-26T14:38:14Z",
"published": "2025-09-26T14:38:13Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/security/advisories/GHSA-hvq2-wf92-j4f3"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59364"
},
{
"type": "WEB",
"url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/pull/23"
},
{
"type": "WEB",
"url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer/commit/62d6542a2a57298da7a2e02de623454007e4f6d6"
},
{
"type": "WEB",
"url": "https://dbugs.ptsecurity.com/vulnerability/PT-2025-37434"
},
{
"type": "WEB",
"url": "https://gist.github.com/Spendroslav/177804eaef5acfb222a550de212a1b94"
},
{
"type": "PACKAGE",
"url": "https://github.com/AhmedAdelFahim/express-xss-sanitizer"
},
{
"type": "WEB",
"url": "https://www.npmjs.com/package/express-xss-sanitizer"
},
{
"type": "WEB",
"url": "https://www.tenable.com/cve/CVE-2025-59364"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "express-xss-sanitizer has an unbounded recursion depth"
}
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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.
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