CVSS 3.1
3.1 lowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:LCVE-2025-47279
Low (3.1). EPSS 0.3% chance of exploitation in the next 30 days. Fixed in undici 5.29.0, 6.21.2, 7.5.0.
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.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-31)
- CWE
- CWE-401
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-cxrh-j4jr-qwg3 | npm | undici | <5.29.0 | 5.29.0 |
| GHSA-cxrh-j4jr-qwg3 | npm | undici | >=6.0.0 <6.21.2 | 6.21.2 |
| GHSA-cxrh-j4jr-qwg3 | npm | undici | >=7.0.0 <7.5.0 | 7.5.0 |