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CVE-2025-31698

Apache Traffic Server: Client IP address from PROXY protocol is not used for ACL

Published: Jun 19, 2025Updated: Jul 1, 2025 Sources: CVE List NVD BDUCWE-284
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.4%
Top 64.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

ACL configured in ip_allow.config or remap.config does not use IP addresses that are provided by PROXY protocol. Users can use a new setting (proxy.config.acl.subjects) to choose which IP addresses to use for the ACL if Apache Traffic Server is configured to accept PROXY protocol.  This issue affects undefined: from 10.0.0 through 10.0.6, from 9.0.0 through 9.2.10. Users are recommended to upgrade to version 9.2.11 or 10.0.6, which fixes the issue.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-284

Affected Products

Traffic ServerApache Software Foundation
On-premWeb App
Web & CMS Plugins / cms-core
Apache Traffic ServerApache Software Foundation
On-premNetwork Device
Networking Infrastructure / load-balancer-proxy
traffic serverapache
On-premWeb App
Web & CMS Plugins
apache software foundationoss-projectUSWeb & CMS Pluginsaka apache foundation
apacheoss-projectUSWeb & CMS Pluginsaka apache http server, apache httpd

Exploitability

Official Patch Available

References

https://lists.apache.org/thread/15t32nxbypqg1m2smp640vjx89o6v5f8
lists.apache.org

Timeline

Published
Jun 19, 2025
Last Updated
Jul 1, 2025

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