Apache HTTP 2.4.x mod_proxy_ftp Infinite Loop (before 2.4.68)
CVE-2026-44186 Published on June 8, 2026
Apache HTTP Server: Loop in `proxy_ftp_handler` in mod_proxy_ftp
Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache HTTP Server with an attacker controlled backend FTP server.
This issue affects undefined: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Vulnerability Analysis
CVE-2026-44186 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be low. considered to have a small impact on confidentiality and integrity and availability.
Timeline
reported
fixed in 2.4.x by r1935004 39 days later.
2.4.68 released 3 days later.
Weakness Type
What is an Infinite Loop Vulnerability?
The program contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. If the loop can be influenced by an attacker, this weakness could allow attackers to consume excessive resources such as CPU or memory.
CVE-2026-44186 has been classified to as an Infinite Loop vulnerability or weakness.
Products Associated with CVE-2026-44186
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Affected Versions
Apache Software Foundation Apache HTTP Server:- Version 2.4.0, <= 2.4.67 is affected.