IP Handling Vulnerability in Apache Traffic Server
CVE-2025-31698

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache Traffic Server
Vendor
CVE Published:
19 June 2025

What is CVE-2025-31698?

The vulnerability arises from an incorrect configuration of access control lists (ACLs) in the Apache Traffic Server which fails to utilize IP addresses provided through the PROXY protocol. This misconfiguration can lead to unauthorized access if not properly managed. Users can resolve this issue by enabling the new setting (proxy.config.acl.subjects) to specify the appropriate IP sources for the ACL when PROXY protocol support is enabled. It is recommended to update to versions 9.2.11 or 10.0.6 to mitigate this vulnerability.

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Affected Version(s)

Apache Traffic Server 10.0.0 <= 10.0.6

Apache Traffic Server 9.0.0 <= 9.2.10

References

https://lists.apache.org/thread/15t32nxbypqg1m2smp640vjx8...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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