Apache Tomcat: Regression in fix for CVE-2026-41293 can trigger request header mix-up
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No sign of exploitation. No public exploitation artifact known so far.
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exploitation probability
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observed exploitation
nono source reports it
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.
Affected products
Apache Software Foundation · Apache Tomcat