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CVE-2026-101356

Apache Tomcat: HTTP/2 request/response mix-up after error during async processing

Published
Last modified
Status
published
Known exploitation
Not listed in CISA KEV
Public exploit
None on Exploit-DB

Summary

Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response mix-up between users. This issue affects Apache Tomcat: from 11.0.22 through 11.0.26, from 10.1.55 through 10.1.60, from 9.0.118 through 9.0.122. Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fixes the issue.

Affected versions

  • Apache Software Foundation Apache Tomcat

    From 11.0.22 · through 11.0.26; From 10.1.55 · through 10.1.60; From 9.0.118 · through 9.0.122

References 1

lists.apache.org