CVE-2026-88041

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.

Status

Deferred - security@apache.org

Published

2026-10-20

Last modified

2026-10-20

Weaknesses

CWE-459

Affected products

• Apache Tomcat (Apache Software Foundation)

References

• https://lists.apache.org/thread.html/dnmm9l3byytg3l66nk1jrqfrl7jty7n1
• http://www.openwall.com/lists/oss-security/2026/10/20/24