CVE-2026-58156
Apache Traffic Server: URL and port parsing errors allow access-control bypass
CVSS Score
4.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-863 |
| Vendor | apache software foundation |
| Product | apache traffic server |
| Published | Jul 29, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Apache Software Foundation / Apache Traffic Server
8.0.0 ≤ 8.1.9 9.0.0 ≤ 9.2.14 10.0.0 ≤ 10.1.3
References
Credits
🔍 Apache Community 🔍 Omkhar Arasaratnam