CVE-2026-44186

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.

Overview

State

—

Assigner (CNA)

—

CVSS severity

high

CVSS score

7.5 / 10

CVSS vector

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

Effective score

7.5 / 10 HIGH source: CNA overview

MSRC score

6.5 / 10 MEDIUM MS rating: Moderate

CWE(s)

CWE-835

Reserved

—

Published

2026-06-09 07:00 UTC

Last updated

2026-06-20 01:43 UTC

Source

https://www.tenable.com/cve/CVE-2026-44186

Linked Threat

CVE-2026-44186 — CVE-2026-44186

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published

2026-06-08 16:16:40 UTC

NVD last modified

2026-07-23 07:10:00 UTC

NVD CVSS v3.1

7.3 / 10 HIGH source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

NVD CVSS vector

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

Exploitability subscore

3.9 / 10

Impact subscore

3.4 / 10

EPSS score

0.0058 (probability of exploitation in next 30 days)

EPSS percentile

44.58% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID

EUVD-2026-35088

Assigner

apache

Published

Jun 8, 2026, 3:11:12 PM

Updated

Jun 9, 2026, 12:20:10 PM

EUVD base score (CVSS 3.1)

7.3 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EUVD-reported EPSS

0.5800

Vendors

Apache Software Foundation

Products

Apache HTTP Server (2.4.0 ≤2.4.67)

Aliases

GHSA-6cr8-qx2w-7743

ENISA 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.

Microsoft Security Response Center MSRC

Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-07-23 03:00 UTC (source: CVRF).

MS severity

Moderate

MS CVSS base score

6.5 / 10 (temporal 6.5)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Release

2026-Jun

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

Web references (5)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

• MSRC update guide: CVE-2026-44186 msrc
• http://www.openwall.com/lists/oss-security/2026/06/08/13 tenable:www.openwall.com
• https://httpd.apache.org/security/vulnerabilities_24.html tenable:httpd.apache.org
• https://nvd.nist.gov/vuln/detail/CVE-2026-44186 tenable:nvd.nist.gov
• https://www.cve.org/CVERecord?id=CVE-2026-44186 tenable:www.cve.org

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

• CVE-2026-44186 - Vulnerability Details - OpenCVE
  web:app.opencve.io

  The absence of a CISA KEV listing indicates no publicly known exploit activity yet, yet the severity and ease of configuration changes render the risk high. Users should apply the 2.4.68 patch or mitigate through configuration changes. Generated by OpenCVE AI on June 9, 2026 at 14:58 UTC.

  2026-06-19 02:37 UTC
• Category: Patch Tuesday | Qualys
  web:blog.qualys.com

  Microsoft and Adobe Patch Tuesday, April 2026 Security Update Review Posted in Patch Tuesday, Vulnerabilities and Threat Research 7 Diksha Ojha March 11, 2026 - 8 min read

  2026-06-19 02:37 UTC
• April 2026 Critical Patch Update Released | security - Oracle Blogs
  web:blogs.oracle.com

  For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

  2026-06-19 02:37 UTC
• June 2026 Critical Security Patch Update Released | security
  web:blogs.oracle.com

  For more information about the Critical Security Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

  2026-06-19 02:37 UTC
• Security Update Guide - Microsoft Security Response Center
  web:msrc.microsoft.com

  Security Update Guide - Microsoft Security Response Center

  2026-06-19 02:37 UTC
• Security Update Guide - Loading - Microsoft
  web:portal.msrc.microsoft.com

  The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

  2026-06-19 02:37 UTC
• CVE-2026-44186: Apache HTTP Server Infinite Loop Vulnerability in mod ...
  web:vulert.com

  Learn about CVE-2026-44186 , an infinite loop vulnerability in Apache HTTP Server's mod_proxy_ftp module, its impact, and how to fix it.

  2026-06-19 02:37 UTC
• CVE-2026-44186 - vulnerability database | Vulners.com
  web:vulners.com

  CVE-2026-44186 affects Apache HTTP Server (mod_proxy_ftp). A loop with an unreachable exit condition can occur when handling an attacker-controlled backend FTP server, impacting 2.4.0 through 2.4.67. The issue's remediation is to upgrade to Apache...

  2026-06-19 02:37 UTC
• Oracle April 2026 Critical Patch Update 241 CVEs | Tenable®
  web:www.tenable.com

  Oracle addresses 241 CVEs in its April Critical Patch Update, the second quarterly update of 2026 with 481 patches, including 34 critical updates.

  2026-06-19 02:37 UTC
• Patch Tuesday June 2026: Security Updates & CVE Analysis
  web:zecurit.com

  Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

  2026-06-19 02:37 UTC

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