CVE-2026-111808

Name of the Vulnerable Software and Affected Versions Apache Traffic Server versions 8.0.0 through 8.1.11 Apache Traffic Server versions 9.0.0 through 9.2.15 Apache Traffic Server versions 10.0.0 through 10.1.4 Apache Traffic Server version 10.2.0

Description A malformed padded HTTP/2 DATA frame can be used to exhaust the worker pool of an HTTP/1.1 origin.

Recommendations Upgrade versions 8.0.0 through 8.1.11 to version 9.2.16. Upgrade versions 9.0.0 through 9.2.15 to version 9.2.16. Upgrade versions 10.0.0 through 10.1.4 to version 10.1.5. Upgrade version 10.2.0 to version 10.2.1.