Feed/CVE-2023-25690
CVE-2023-25690CRITICALCVSS 9.8

CVE-2023-25690

Published Mar 7, 2023·Updated Jun 17, 2026

NVD Description

Some mod_proxy configurations on Apache HTTP Server versions 2.4.0 through 2.4.55 allow a HTTP Request Smuggling attack. Configurations are affected when mod_proxy is enabled along with some form of RewriteRule or ProxyPassMatch in which a non-specific pattern matches some portion of the user-supplied request-target (URL) data and is then re-inserted into the proxied request-target using variable substitution. For example, something like: RewriteEngine on RewriteRule "^/here/(.*)" "http://example.com:8080/elsewhere?$1"; [P] ProxyPassReverse /here/ http://example.com:8080/ Request splitting/smuggling could result in bypass of access controls in the proxy server, proxying unintended URLs to existing origin servers, and cache poisoning. Users are recommended to update to at least version 2.4.56 of Apache HTTP Server.

Public Exploits & PoCs7 found

PoC: CTF-Web-Exploitation

A comprehensive collection of 12 containerized web exploitation challenges covering CVE-2023-25690, WebAuthn bypasses, HTTP/3 smuggling, and advanced XSS/RCE chains

1

[POC] GHSA-8qqm-fp2q-v734 — CVE-2023-25690_lab

HTTP Request Smuggling lab: Apache 2.4.55 CRLF injection

PoC: CVE-2023-25690-POC

CVE 2023 25690 Proof of concept - mod_proxy vulnerable configuration on Apache HTTP Server versions 2.4.0 - 2.4.55 leads to HTTP Request Smuggling vulnerability.

PoC: CVE-2023-25690-PoC

CVE-2023-30253 PoC

PoC: CVE-2023-25690-exploit

CVE-2023-25690 - mod_proxy vulnerable configuration on Apache HTTP Server versions 2.4.0 to 2.4.55 leads to HTTP Request Smuggling.

PoC: CVE-2023-25690-POC

CVE 2023 25690 Proof of concept - mod_proxy vulnerable configuration on Apache HTTP Server versions 2.4.0 - 2.4.55 leads to HTTP Request Smuggling vulnerability.

PoC: linux-apache-fix-mod_rewrite-spaceInURL

Fix URL containing SPACES after Apache upgrade CVE-2023-25690

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

View on NVD Search GitHub Search Google

Get alerted for CVEs like this

Register your stack and get notified within minutes when a matching CVE drops.

Start monitoring free