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7.5
HIGH CVSS 3.1
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 Exploit :

Yes !

Source :

[email protected]
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
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update Apache Traffic Server to address a vulnerability in PROXY Protocol ACL IP address use.
  • Upgrade Apache Traffic Server to version 9.2.11 or 10.0.6.
  • Update the trafficserver packages.
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.

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
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:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-31698 weaknesses.

CAPEC-19: Embedding Scripts within Scripts Embedding Scripts within Scripts CAPEC-441: Malicious Logic Insertion Malicious Logic Insertion CAPEC-478: Modification of Windows Service Configuration Modification of Windows Service Configuration CAPEC-479: Malicious Root Certificate Malicious Root Certificate CAPEC-502: Intent Spoof Intent Spoof CAPEC-503: WebView Exposure WebView Exposure CAPEC-536: Data Injected During Configuration Data Injected During Configuration CAPEC-546: Incomplete Data Deletion in a Multi-Tenant Environment Incomplete Data Deletion in a Multi-Tenant Environment CAPEC-550: Install New Service Install New Service CAPEC-551: Modify Existing Service Modify Existing Service CAPEC-552: Install Rootkit Install Rootkit CAPEC-556: Replace File Extension Handlers Replace File Extension Handlers CAPEC-558: Replace Trusted Executable Replace Trusted Executable CAPEC-562: Modify Shared File Modify Shared File CAPEC-563: Add Malicious File to Shared Webroot Add Malicious File to Shared Webroot CAPEC-564: Run Software at Logon Run Software at Logon CAPEC-578: Disable Security Software Disable Security Software

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).

Profile Photo
FBR65/sec_ckeck

None

Python Dockerfile HTML PHP

Updated: 2 months 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 (2 months ago)

Results are limited to the first 20 news articles due to potential performance issues.

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.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact