Apache HTTP Server: mod_proxy_ftp PASV address handling

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-63045
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-01 17:17:29 UTC
Updated2026-10-01 21:17:23 UTC
DescriptionImproper 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

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

Problem Types: CWE-284 | CWE-284 CWE-284 Improper Access Control

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache HTTP Server affected 2.4.0 2.4.68 semver Not specified

References

ReferenceSourceLinkTags
httpd.apache.org/security/vulnerabilities_24.html [email protected] httpd.apache.org
www.openwall.com/lists/oss-security/2026/10/01/23 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Zhen Kong (en)

CNA: 4ra1n, pyn3rd and unam4 (en)

CNA: Charles Vosburgh (en)

CNA: sungbyeongchan (en)

CNA: Daradigu / RELAUNCH DEPT. (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-07-07T16:26:00.000ZReport received
CNA2026-10-01T12:00:00.000Zfixed in 2.4.x by r1938674
CNA2026-10-01T12:00:00.000Z2.4.69 released

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