CVE-2025-47279
lowpriority · track · 0EPSS 0.003 · 27 %ileDEEURUUSEPSS · scored 2026-10-27
Undici is an HTTP/1.1 client for Node.js. Prior to versions 5.29.0, 6.21.2, and 7.5.0, applications that use undici to implement a webhook-like system are vulnerable. If the attacker set up a server with an invalid certificate, and they can force the application to call the webhook repeatedly, then they can cause a memory leak. This has been patched in versions 5.29.0, 6.21.2, and 7.5.0. As a workaound, avoid calling a webhook repeatedly if the webhook fails.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (15)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-1101IBM App Connect Enterprise: Schwachstelle ermöglicht Denial of ServiceDeutsch2025-05-19csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in IBM App Connect Enterprise ausnutzen, um einen Denial of Service Angriff durchzuführen.
- GHSA-cxrh-j4jr-qwg3undici Denial of Service attack via bad certificate data2025-05-15ghsa · osvUS
### Impact Applications that use undici to implement a webhook-like system are vulnerable. If the attacker set up a server with an invalid certificate, and they can force the application to call the webhook repeatedly, then they can cause a memory leak. ### Patches This has been patched in https://github.com/nodejs/undici/pull/4088. ### Workarounds If a webhook fails, avoid keep calling it repeatedly. ### References Reported as: https://github.com/nodejs/undici/issues/3895
also known as (4)
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sources
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references (12)
External citations — patches, advisories, analysis.
- https://github.com/nodejs/undici/issues/3895cnnvd
- https://github.com/nodejs/undici/pull/4088cnnvd
- https://github.com/nodejs/undici/releasesPatchcnnvd
- https://github.com/nodejs/undici/security/advisories/GHSA-cxrh-j4jr-qwg3cnnvd
- https://github.com/nodejs/undici/commit/f317618ec28753a4218beccea048bcf89c36db25enisa_euvd
- https://github.com/nodejs/undici/issues/3895enisa_euvd
- https://github.com/nodejs/undici/pull/4088enisa_euvd
- https://github.com/nodejs/undici/security/advisories/GHSA-cxrh-j4jr-qwg3enisa_euvd
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