medium6.5
CVE-2021-22959
The parser in accepts requests with a space (SP) right after the header name before the colon.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Llhttp | Llhttp | before 2.1.4 from 3.0.0 before 6.0.6 |
| Oracle | Graalvm | Versions 20.3.4, 21.3.0 |
| Debian | Debian Linux | Version 11.0 |