CVE-2026-41920
Received Received - Intake

Improper Access Control in Apache Traffic Server

Publication date: 2026-07-29

Last updated on: 2026-07-29

Assigner: Apache Software Foundation

Description
Improper Access Control vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.0.0 through 9.1.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.1.15 or 10.1.4, which fixes the issue.

CVSS Scores

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Meta Information

Published
2026-07-29
Last Modified
2026-07-29
Generated
2026-07-29
AI Q&A
2026-07-29
EPSS Evaluated
N/A
NVD
CVE-2026-41920
EUVD
EUVD-2026-50167

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
apache traffic_server From 9.0.0 (inc) to 9.1.14 (inc)
apache traffic_server From 10.0.0 (inc) to 10.1.3 (inc)
apache traffic_server 9.1.15
apache traffic_server 10.1.4

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

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Executive Summary

This is an Improper Access Control vulnerability in Apache Traffic Server affecting versions 9.0.0 through 9.1.14 and 10.0.0 through 10.1.3. It allows unauthorized access to sensitive functions due to insufficient access restrictions.

Impact Analysis

An attacker could exploit this to gain unauthorized access to system resources, modify configurations, or intercept sensitive data. The high CVSS score indicates significant risk of data breaches or service disruption.

Compliance Impact

This vulnerability could lead to unauthorized data access or disclosure, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Non-compliance may result in legal penalties.

Mitigation Strategies

Upgrade Apache Traffic Server to version 9.1.15 or 10.1.4, as these versions fix the improper access control vulnerability.

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