CVE-2025-47279

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.

• CWE-401

• https://github.com/nodejs/undici/commit/f317618ec28753a4218beccea048bcf89c36db25
• https://github.com/nodejs/undici/issues/3895
• https://github.com/nodejs/undici/pull/4088
• https://github.com/nodejs/undici/security/advisories/GHSA-cxrh-j4jr-qwg3

Published

May 15, 2025

Last Modified

Jun 17, 2026

Status

Deferred

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