Description
Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request.



This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122.



Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.
Published: 2026-10-20
Score: n/a
EPSS: n/a
KEV: No
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Remediation

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History

Tue, 20 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache apache Tomcat
Apache tomcat
Apache Software Foundation
Apache Software Foundation tomcat
Vendors & Products Apache
Apache apache Tomcat
Apache tomcat
Apache Software Foundation
Apache Software Foundation tomcat

Tue, 20 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request. This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122. Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.
Title Apache Tomcat: HTTP/2 trailer header cross-contamination
Weaknesses CWE-459
References

Subscriptions

Apache Apache Tomcat Tomcat
Apache Software Foundation Tomcat
cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-10-20T13:43:28.681Z

Reserved: 2026-09-09T20:29:03.987Z

Link: CVE-2026-88041

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-20T14:17:04.097

Modified: 2026-10-20T14:17:04.097

Link: CVE-2026-88041

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-20T16:15:14Z

Weaknesses