CVE-2026-103119: Apache Tomcat: AJP response mix-up

Posted by Mark Thomas on Oct 20 Severity: important Affected versions: - Apache Tomcat 11.0.0-M25 through 11.0.26 Description: Buffer under-read vulnerability in Apache Tomcat meant that a large non-blocking write could result in the response body being split between the current request and the next request received on that connection leading most likely to failure of the second request and possibly leakage of data from the first response to the second.

Published 21-Oct-2026 04:28 UTC · First seen 21-Oct-2026 04:27 UTC

Sources

• Open Source Security · 20-Oct-2026