7.5
HIGH
CVE-2025-31698
Apache Traffic Server PROXY Protocol ACL IP Address Use Vulnerability
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.

INFO

Published Date :

June 19, 2025, 10:15 a.m.

Last Modified :

July 1, 2025, 8:14 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2025-31698 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2025-31698 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apache traffic_server
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-31698.

URL Resource
https://lists.apache.org/thread/15t32nxbypqg1m2smp640vjx89o6v5f8 Mailing List Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Python Dockerfile HTML PHP

Updated: 3 weeks, 1 day ago
0 stars 0 fork 0 watcher
Born at : June 18, 2025, 7:44 p.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-31698 vulnerability anywhere in the article.

  • The Cyber Express
CVE-2025-49763: Apache Traffic Server Vulnerability Enables Memory Exhaustion Attacks

A security flaw in Apache Traffic Server (ATS) is targeting cloud service providers worldwide. The vulnerability, identified as CVE-2025-49763, exposes affected systems to denial-of-service (DoS) atta ... Read more

Published Date: Jun 20, 2025 (3 weeks, 3 days ago)

The following table lists the changes that have been made to the CVE-2025-31698 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Jul. 01, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* versions from (including) 10.0.0 up to (excluding) 10.0.6 *cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* versions from (including) 9.0.0 up to (excluding) 9.2.11
    Added Reference Type Apache Software Foundation: https://lists.apache.org/thread/15t32nxbypqg1m2smp640vjx89o6v5f8 Types: Mailing List, Vendor Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jun. 20, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • New CVE Received by [email protected]

    Jun. 19, 2025

    Action Type Old Value New Value
    Added 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.
    Added CWE CWE-284
    Added Reference https://lists.apache.org/thread/15t32nxbypqg1m2smp640vjx89o6v5f8
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-31698 is associated with the following CWEs:

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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Latest DB Update: Jul. 14, 2025 13:31