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CVE-2026-78437 Incomplete cleanup vulnerability in Apache Tomcat allows a malformed request to potentially (depends on timing) cause…

Description

Incomplete cleanup vulnerability in Apache Tomcat allows a malformed request to potentially (depends on timing) cause one request from another user to fail. This issue affects Apache Tomcat: from 11.0.19 through 11.0.25, from 10.1.53 through 10.1.59, from 9.0.116 through 9.0.121. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.

Affected products and versions

Product Affected versions Fixed in
Apache Tomcat 11.0 11.0.19 → 11.0.25 No fix stated
Apache Tomcat 10.1 10.1.53 → 10.1.59 No fix stated
Apache Tomcat 9.0 9.0.116 → 9.0.121 No fix stated

References

Timeline

  1. Published
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