CVE-2026-59173: Apache Traffic Server

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Uncontrolled Resource Consumption vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.0.0 through 9.1.13, from 10.0.0 through 10.1.2. Users are recommended to upgrade to version 9.1.14 or 10.1.3, which fixes the issue.

Affected products

• Apache Traffic Server: from 9.0.0, before 9.2.14 (fixed in 9.2.14); from 10.0.0, before 10.1.3 (fixed in 10.1.3)

Published 2026-07-18. Last modified 2026-08-06.