CVE-2026-63045: CWE-284 Improper Access Control in Apache Software Foundation Apache HTTP Server
CVE-2026-63045 is an improper access control vulnerability in the mod_proxy_ftp module of Apache HTTP Server versions 2.4.0 through 2.4.68. It allows an untrusted FTP server to manipulate the proxy by sending a crafted PASV response, causing the proxy to open a data connection to an arbitrary third-party host. This issue affects forward proxy configurations. The vulnerability is fixed in Apache HTTP Server version 2.4.69.
AI Analysis
Technical Summary
The vulnerability arises from improper validation of the FTP PASV reply address in the mod_proxy_ftp module of Apache HTTP Server up to version 2.4.68. In forward proxy configurations, an attacker controlling an untrusted FTP server can craft a PASV response that causes the proxy to open a data connection to an arbitrary third-party host, potentially enabling unauthorized network connections. The Apache Software Foundation has addressed this issue in version 2.4.69.
Potential Impact
An attacker controlling an untrusted FTP server can exploit this vulnerability to cause the proxy server to open connections to arbitrary third-party hosts. This could be used to bypass network restrictions or facilitate indirect attacks on other hosts. The impact is limited to forward proxy configurations using mod_proxy_ftp.
Mitigation Recommendations
Users should upgrade Apache HTTP Server to version 2.4.69 or later, where this vulnerability is fixed. No other mitigation is indicated by the vendor advisory.
CVE-2026-63045: CWE-284 Improper Access Control in Apache Software Foundation Apache HTTP Server
Description
CVE-2026-63045 is an improper access control vulnerability in the mod_proxy_ftp module of Apache HTTP Server versions 2.4.0 through 2.4.68. It allows an untrusted FTP server to manipulate the proxy by sending a crafted PASV response, causing the proxy to open a data connection to an arbitrary third-party host. This issue affects forward proxy configurations. The vulnerability is fixed in Apache HTTP Server version 2.4.69.
Affected software
Apache Software Foundation
Apache HTTP Server
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability arises from improper validation of the FTP PASV reply address in the mod_proxy_ftp module of Apache HTTP Server up to version 2.4.68. In forward proxy configurations, an attacker controlling an untrusted FTP server can craft a PASV response that causes the proxy to open a data connection to an arbitrary third-party host, potentially enabling unauthorized network connections. The Apache Software Foundation has addressed this issue in version 2.4.69.
Potential Impact
An attacker controlling an untrusted FTP server can exploit this vulnerability to cause the proxy server to open connections to arbitrary third-party hosts. This could be used to bypass network restrictions or facilitate indirect attacks on other hosts. The impact is limited to forward proxy configurations using mod_proxy_ftp.
Mitigation Recommendations
Users should upgrade Apache HTTP Server to version 2.4.69 or later, where this vulnerability is fixed. No other mitigation is indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-07-15T07:09:43.751Z
- State
- PUBLISHED
Threat ID: 6abe8afca43b0b3b89c7c22b
Added to database: 10/01/2026, 16:31:56 UTC
Last enriched: 10/01/2026, 16:47:44 UTC
Last updated: 10/01/2026, 17:21:31 UTC
Views: 4
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