Critical severity9.3NVD Advisory· Published Oct 21, 2026
CVE-2026-111809
CVE-2026-111809
Description
Apache Traffic Server allows request smuggling via HEAD requests that carry Content-Length or Transfer-Encoding.
This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0.
Users are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.
Affected products
1- Range: 8.0.0 - 8.1.11, 9.0.0 - 9.2.15, 10.0.0 - 10.1.4, 10.2.0
Patches
Vulnerability mechanics
References
1News mentions
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