Inconsistent interpretation of HTTP/2 requests ('HTTP Request/Response smuggling') vulnerability in Apache Tomcat caused by a regression in fix for CVE-2026-41293 can trigger request header mix-up.
This issue affects Apache Tomcat: from 11.0.22 through 11.0.25, from 10.1.55 through 10.1.59, from 9.0.118 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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Apache Tomcat | — | Upgrade Apache Tomcat to 9.0.122Upgrade Apache Tomcat to the latest available versionUpgrade Apache Tomcat to 11.0.26Upgrade Apache Tomcat to 10.1.60 | Sep 24, 2026 | Sep 23, 2026 |
| Redhat_linux | — | No solution exists | Oct 1, 2026 | Sep 23, 2026 |
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