Vulnerability in Nodejs Undici
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.
EPSS: 0.003 (18.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Nodejs Undici — versions < 5.29.0, >= 6.0.0, < 6.21.2, >= 7.0.0, < 7.5.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-47279?
- CVE-2025-47279 is a low-severity vulnerability in Nodejs Undici, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 3.1/10. Published 2025-05-15.
- How severe is CVE-2025-47279?
- Low severity. CVSS v3 base score is 3.1 out of 10.