GHSA-c76h-2ccp-4975
First published: Tue Jan 21 2025(Updated: )
### Impact [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. If 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. ### Patches This is fixed in 5.28.5; 6.21.1; 7.2.3. ### Workarounds Do not issue multipart requests to attacker controlled servers. ### References * https://hackerone.com/reports/2913312 * https://blog.securityevaluators.com/hacking-the-javascript-lottery-80cc437e3b7f
| Affected Software | Affected Version | How to fix |
|---|---|---|
| npm/undici | >=7.0.0<7.2.3 | 7.2.3 |
| npm/undici | >=6.0.0<6.21.1 | 6.21.1 |
| npm/undici | >=4.5.0<5.28.5 | 5.28.5 |
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Reference Links
- https://github.com/nodejs/undici/security/advisories/GHSA-c76h-2ccp-4975
- 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/blob/8b06b8250907d92fead664b3368f1d2aa27c1f35/lib/web/fetch/body.js#L113
- https://github.com/advisories/GHSA-c76h-2ccp-4975 (Advisory)
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-c76h-2ccp-4975
- alias/CVE-2025-22150
- agent/software-canonical-lookup
- agent/weakness
- agent/references
- agent/source
- agent/severity
- agent/last-modified-date
- agent/type
- agent/tags
- agent/softwarecombine
- agent/description
- agent/first-publish-date
- agent/event
- package-manager/npm