CVE-2025-47279
Low
Description
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.
SeverityLow
CVSS3.1
Exploit probability—
ProductUndici
PublishedMay 15, 2025
First seenMay 15, 2025
Weakness typeCWE-401CWE-401
How to fix
Update
- undici5.29.0, 6.21.2, 7.5.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| undicinpm | v < 5.29.0, 6.0.0 ≤ v < 6.21.2, 7.0.0 ≤ v < 7.5.0 | 5.29.0, 6.21.2, 7.5.0 |
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