CVE-2024-43394

CVE-2024-43394: Apache HTTP Server: SSRF on Windows due to UNC paths

Vendor Apache Software Foundation
Product Apache HTTP Server
Weakness CWE-918 · SSRF
Published July 10, 2025
Last update November 4, 2025

CVSS base score

What the vulnerability does

Description

Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via  mod_rewrite or apache expressions that pass unvalidated request input. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.63. Note:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. The server offers limited protection against administrators directing the server to open UNC paths. Windows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.

Key dates

Disclosure timeline

July 10, 2025 CVE published
November 4, 2025 Record updated