Vulnerability DatabaseCVE-2026-58156
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CVE-2026-58156
Published:July 29, 2026
Updated:August 05, 2026
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.
Affected Packages
https://github.com/apache/trafficserver.git (GITHUB):
Affected version(s) >=10.0.0 <10.1.4
Fix Suggestion:
Update to version 10.1.4
https://github.com/apache/trafficserver.git (GITHUB):
Affected version(s) >=9.0.0 <9.2.15
Fix Suggestion:
Update to version 9.2.15
Related Resources (3)
https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58156.json
https://nvd.nist.gov/vuln/detail/CVE-2026-58156
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CVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
CWE-863
EPSS
Base Score:
0.22