CVE-2021-22959
MEDIUM6.5EPSS 0.16%nodejs - security update
Published: 11/15/2021Modified: 4/28/2026
Description
The parser in accepts requests with a space (SP) right after the header name before the colon. This can lead to HTTP Request Smuggling (HRS) in llhttp < v2.1.4 and < v6.0.6.
Affected packages (3)
- Alpine/nodejsfrom 0, < 12.22.10-r0
- Debian/nodejsfrom 0, < 12.22.12~dfsg-1~deb11u1
- Debian/nodejsfrom 0, < 12.22.12~dfsg-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |