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.
CVE-2026-78437
NONE
Updated Sep 23, 2026
Apache
CVE Details
CVE ID
CVE-2026-78437
Published Date
Sep 23, 2026
Vendor
Apache
Severity
NONE
Impact
Minimal impact
Source
View Advisory