CVE-2026-63045

Apache HTTP Server: mod_proxy_ftp PASV address handling

Published Oct 1, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Improper validation of FTP PASV reply address in mod_proxy_ftp in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows, in forward proxy configurations, an untrusted FTP server to cause the proxy to open a data connection to an arbitrary third-party host via a crafted PASV response.

Users are recommended to upgrade to version 2.4.69, which fixes this issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4902-1 apache2 security update
Debian DSA Debian DSA DSA-6569-1 apache2 security update
Ubuntu USN Ubuntu USN USN-8931-1 Apache HTTP Server vulnerabilities
Ubuntu USN Ubuntu USN USN-9016-1 Apache HTTP Server vulnerabilities
History
Type Values Removed Values Added
First Time appeared Apache http Server
CPEs cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
Vendors & Products Apache http Server
Type Values Removed Values Added
First Time appeared Redhat
Redhat hummingbird
Weaknesses CWE-918
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat
Redhat hummingbird
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
First Time appeared Apache
Apache apache Http Server
Vendors & Products Apache
Apache apache Http Server
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Improper validation of FTP PASV reply address in mod_proxy_ftp in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows, in forward proxy configurations, an untrusted FTP server to cause the proxy to open a data connection to an arbitrary third-party host via a crafted PASV response. Users are recommended to upgrade to version 2.4.69, which fixes this issue.
Title Apache HTTP Server: mod_proxy_ftp PASV address handling
Weaknesses CWE-284
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Oct 1, 2026, 8:09 PM
Reserved
Jul 15, 2026, 7:09 AM
Status
Analyzed
Published
Oct 1, 2026, 5:17 PM
Modified
Oct 5, 2026, 1:15 PM
Severity
Moderate
Public date
Oct 1, 2026, 4:09 PM