Is CVE-2026-58156 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-58156?

CVE-2026-58156 has a CVSS v3 severity of MEDIUM (4.9).

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CVE-2026-58156

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.