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websafe-kb/08-threat-intel/registry/advisories/undici--CVE-2025-22150.json

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{
"canonical_id": "undici--CVE-2025-22150",
"system_id": "undici",
"display_name": "Undici",
"category": "frameworks",
"advisory_mode": "core",
"title": "Use of Insufficiently Random Values in undici",
"summary": "### Impact\n\n[Undici `fetch()` uses Math.random()](https://github.com/nodejs/undici/blob/8b06b8250907d92fead664b3368f1d2aa27c1f35/lib/web/fetch/body.js#L113) to choose the boundary for a multipart/form-data request. It is known that the output of Math.random() can be predicted if several of its generated values are known.\n\nIf there is a mechanism in an app that sends multipart requests to an attacker-controlled website, they can use this to leak the necessary values. Therefore, An attacker can tamper with the requests going to the backend APIs if certain conditions are met.\n\n### Patches\n\nThis is fixed in 5.28.5; 6.21.1; 7.2.3.\n\n### Workarounds\n\nDo not issue multipart requests to attacker controlled servers.\n\n### References\n\n* https://hackerone.com/reports/2913312\n* https://blog.securityevaluators.com/hacking-the-javascript-lottery-80cc437e3b7f\n",
"published_at": "2025-01-21T21:10:47Z",
"updated_at": "2026-02-04T02:29:26.373390Z",
"severity": "low",
"cvss_score": 3.1,
"exploit_status": "unknown",
"source_confidence": "official",
"official_source_url": "https://github.com/nodejs/undici/security/advisories/GHSA-c76h-2ccp-4975",
"secondary_source_urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2025-22150",
"https://github.com/nodejs/undici/commit/711e20772764c29f6622ddc937c63b6eefdf07d0",
"https://github.com/nodejs/undici/commit/c2d78cd19fe4f4c621424491e26ce299e65e934a",
"https://github.com/nodejs/undici/commit/c3acc6050b781b827d80c86cbbab34f14458d385",
"https://hackerone.com/reports/2913312",
"https://blog.securityevaluators.com/hacking-the-javascript-lottery-80cc437e3b7f",
"https://github.com/nodejs/undici",
"https://github.com/nodejs/undici/blob/8b06b8250907d92fead664b3368f1d2aa27c1f35/lib/web/fetch/body.js#L113"
],
"aliases": [
"CVE-2025-22150",
"GHSA-c76h-2ccp-4975"
],
"cve_ids": [
"CVE-2025-22150"
],
"ghsa_ids": [
"GHSA-c76h-2ccp-4975"
],
"osv_ids": [
"GHSA-c76h-2ccp-4975"
],
"affected_versions": [
"introduced=4.5.0, fixed<5.28.5",
"introduced=6.0.0, fixed<6.21.1",
"introduced=7.0.0, fixed<7.2.3"
],
"fixed_versions": [
"5.28.5",
"6.21.1",
"7.2.3"
],
"package_name": "undici",
"render_markdown": true,
"case_path": "07-framework-security/frameworks/undici/cases/undici-cve-2025-22150.md",
"secure_code_topics": [
"ssrf-url-validation",
"proxy-trust-boundary"
],
"status": "generated",
"triage_reasons": [],
"metadata": {
"source_names": [
"OSV Undici"
],
"source_kinds": [
"osv-batch"
],
"candidate_count": 1
}
}