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Case File

CVE-2021-33193

HIGH · CVSS 7.5 EPSS 46.18% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-16 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-33193
Severity
HIGH
CVSS
7.5
EPSS
46.18%
Apache

Original NVD Description

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.