CVE-2026-58156: CWE-863 Incorrect Authorization in Apache Software Foundation Apache Traffic Server
Apache Traffic Server mis-parses ports in URLs and userinfo, allowing port-based access-control bypass. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
AI Analysis
Technical Summary
CVE-2026-58156 is an incorrect authorization vulnerability (CWE-863) in Apache Traffic Server where the software mis-parses ports in URLs and userinfo components. This flaw enables an attacker to bypass port-based access controls, potentially allowing unauthorized access to resources. The vulnerability affects Apache Traffic Server versions 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3. The vendor recommends upgrading to versions 9.2.15 or 10.1.4, which contain fixes for this issue.
Potential Impact
The vulnerability allows an attacker to bypass port-based access control mechanisms due to incorrect parsing of URL ports and userinfo. This can lead to unauthorized access with limited confidentiality and integrity impact, but no availability impact is indicated. The CVSS score of 4.9 (medium severity) reflects the moderate risk associated with this issue.
Mitigation Recommendations
Users should upgrade Apache Traffic Server to version 9.2.15 or 10.1.4 or later, as these versions include fixes for this vulnerability. Patch status is confirmed by the vendor's recommendation to upgrade. No alternative mitigations are specified.
CVE-2026-58156: CWE-863 Incorrect Authorization in Apache Software Foundation Apache Traffic Server
Description
Apache Traffic Server mis-parses ports in URLs and userinfo, allowing port-based access-control bypass. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
CVSS v3.1
Score 4.9medium
Affected software
Apache Software Foundation
Apache Traffic Server
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-58156 is an incorrect authorization vulnerability (CWE-863) in Apache Traffic Server where the software mis-parses ports in URLs and userinfo components. This flaw enables an attacker to bypass port-based access controls, potentially allowing unauthorized access to resources. The vulnerability affects Apache Traffic Server versions 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3. The vendor recommends upgrading to versions 9.2.15 or 10.1.4, which contain fixes for this issue.
Potential Impact
The vulnerability allows an attacker to bypass port-based access control mechanisms due to incorrect parsing of URL ports and userinfo. This can lead to unauthorized access with limited confidentiality and integrity impact, but no availability impact is indicated. The CVSS score of 4.9 (medium severity) reflects the moderate risk associated with this issue.
Mitigation Recommendations
Users should upgrade Apache Traffic Server to version 9.2.15 or 10.1.4 or later, as these versions include fixes for this vulnerability. Patch status is confirmed by the vendor's recommendation to upgrade. No alternative mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-06-29T15:46:44.742Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a69bbd69c2644c7f835ad32
Added to database: 07/29/2026, 08:37:42 UTC
Last enriched: 07/29/2026, 10:09:35 UTC
Last updated: 09/12/2026, 10:01:32 UTC
Views: 67
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