CVE-2026-58156
MEDIUMApache Traffic Server: URL and port parsing errors allow access-control bypass
Title source: cnaDescription
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.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d
Scores
CVSS v3
4.9
EPSS
0.0013
EPSS Percentile
3.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-863
Status
published
Products (3)
Apache Software Foundation/Apache Traffic Server
10.0.0 - 10.1.3
Apache Software Foundation/Apache Traffic Server
8.0.0 - 8.1.9
Apache Software Foundation/Apache Traffic Server
9.0.0 - 9.2.14
Published
Jul 29, 2026
Tracked Since
Jul 29, 2026