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CVE-2026-44186— Apache HTTP Server: Loop in `proxy_ftp_handler` in mod_proxy_ftp

AI Predicted 7.5 Difficulty: Hard EPSS 0.58% · P45

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProductVersion RangeStatus
Apache Software FoundationApache HTTP Server2.4.0≤ 2.4.67affected
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I. Basic Information for CVE-2026-44186

Vulnerability Information
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Vulnerability Title
Apache HTTP Server: Loop in `proxy_ftp_handler` in mod_proxy_ftp
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache HTTP Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 Apache HTTP Server 2.4.0版本至2.4.67版本存在安全漏洞，该漏洞源于mod_proxy_ftp模块存在无限循环，可能导致攻击者控制的后端FTP服务器触发。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Apache Software FoundationApache HTTP Server 2.4.0 ~ 2.4.67 -

II. Public POCs for CVE-2026-44186

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III. Intelligence Information for CVE-2026-44186

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Vendor Advisories for CVE-2026-44186 (1)

Same Patch Batch · Apache Software Foundation · 2026-06-08 · 14 CVEs total

CVE-2026-47430Cordova Plugin InAppBrowser: iOS: Arbitrary Cordova callback IDs can be dispatched without
CVE-2026-29167Apache HTTP Server: mod_ldap per-dir use-after-free
CVE-2026-29170Apache HTTP Server: mod_proxy_ftp XSS
CVE-2026-34356Apache HTTP Server: ProxyPassReverseCookieMap buffer overflow
CVE-2026-42535Apache HTTP Server: mod_dav_fs protected directory access
CVE-2026-43951Apache HTTP Server: OOB Read in `merge_response_headers` can cause crash
CVE-2026-44119Apache HTTP Server: escalation of privilege through expressions in .htaccess in multiple m
CVE-2026-44631Apache HTTP Server: Heap Underflow in `ap_regname` via Signed Char Overflow
CVE-2026-34355Apache HTTP Server: mod_proxy_html buffer overflow
CVE-2026-44185Apache HTTP Server: Stack Buffer Over-Read in mod_ssl OCSP `send_request`
CVE-2026-42536Apache HTTP Server: mod_xml2enc heap overflow
CVE-2026-48913Apache HTTP Server: mod_http2 memory corruption when file handles exhausted
CVE-2026-49975Apache HTTP Server: mod_http2 denial of service

IV. Related Vulnerabilities

Same product: Apache HTTP Server
Same vendor: Apache Software Foundation
Same weakness: CWE-835

V. Comments for CVE-2026-44186

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