// For flags

CVE-2025-31698

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

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2025-03-31 CVE Reserved
  • 2025-06-19 CVE Published
  • 2025-06-20 CVE Updated
  • 2025-07-02 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-284: Improper Access Control
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://lists.apache.org/thread/15t32nxbypqg1m2smp640vjx89o6v5f8 2025-06-19
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apache Software Foundation
Search vendor "Apache Software Foundation"
 Apache Traffic Server
Search vendor "Apache Software Foundation" for product "Apache Traffic Server"
 >= 10.0.0 <= 10.0.6
Search vendor "Apache Software Foundation" for product "Apache Traffic Server" and version " >= 10.0.0 <= 10.0.6"
en
Affected
Apache Software Foundation
Search vendor "Apache Software Foundation"
 Apache Traffic Server
Search vendor "Apache Software Foundation" for product "Apache Traffic Server"
 >= 9.0.0 <= 9.2.10
Search vendor "Apache Software Foundation" for product "Apache Traffic Server" and version " >= 9.0.0 <= 9.2.10"
en
Affected