CVE-2026-58156

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 8.1.11, 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 4.9 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d	Mailing List Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:traffic_server::::::::
	cpe:2.3:a:apache:traffic_server::::::::
	cpe:2.3:a:apache:traffic_server::::::::

History

01 Oct 2026, 17:17

Type	Values Removed	Values Added
Summary	(en) 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.	(en) 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 8.1.11, 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.
References	~~() https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d - Vendor Advisory, Mailing List~~	() https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d - Mailing List, Vendor Advisory

Information

Published : 2026-07-29 09:16

Updated : 2026-10-01 17:17

NVD link : CVE-2026-58156

Mitre link : CVE-2026-58156

CVE.ORG link : CVE-2026-58156

JSON object : View

Products Affected

apache

traffic_server

CWE

CWE-863

Incorrect Authorization

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