CVE-2021-22959
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-22959
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-22959.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-22959
- Downstream
- Related
- Published
- 2021-11-15T15:15:06.747Z
- Modified
- 2025-11-14T11:15:10.813775Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References