CVE-2026-44186
Analyzed Analyzed - Analysis Complete

Infinite Loop in Apache HTTP Server mod_proxy_ftp Module

Vulnerability report for CVE-2026-44186, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-06-08

Last updated on: 2026-06-11

Assigner: Apache Software Foundation

Description

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.

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Meta Information

Published
2026-06-08
Last Modified
2026-06-11
Generated
2026-06-29
AI Q&A
2026-06-08
EPSS Evaluated
2026-06-27
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
apache http_server From 2.4.0 (inc) to 2.4.68 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-835 The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

Attack-Flow Graph

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Executive Summary

This vulnerability is an Infinite Loop issue in the mod_proxy_ftp module of the Apache HTTP Server. It occurs when the server interacts with an attacker-controlled backend FTP server, causing the mod_proxy_ftp module to enter a loop with an unreachable exit condition.

Impact Analysis

The impact of this vulnerability is that the Apache HTTP Server could become stuck in an infinite loop when processing FTP proxy requests to a malicious backend FTP server. This could lead to resource exhaustion, denial of service, or degraded server performance.

Mitigation Strategies

Users are recommended to upgrade Apache HTTP Server to version 2.4.68, which fixes the issue.

Compliance Impact

The provided information does not specify any direct impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

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