Servers and applications
CVE-2021-33193
A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.
- Severity
- High 7.5
- Published
- 16 Aug 2021
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 17 Oct 2026
- Fixed in
- 2.4.49
- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
Apache HTTP ServerServers and applications · cpe:a:apache:http_server |
|