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GHSA-563x-q5rq-57qp

Apache Tomcat has an HTTP Request/Response Smuggling vulnerability

Source: GitHub Advisory Database (reviewed) High CVE-2026-24880

Packages

EcosystemPackageAffectedFixed in
Maven org.apache.tomcat:tomcat-coyote >= 7.0.0, < 9.0.116 9.0.116
Maven org.apache.tomcat:tomcat-coyote >= 10.1.0-M1, < 10.1.52 10.1.52
Maven org.apache.tomcat:tomcat-coyote >= 11.0.0-M1, < 11.0.20 11.0.20
Maven org.apache.tomcat.embed:tomcat-embed-core >= 7.0.0, < 9.0.116 9.0.116
Maven org.apache.tomcat.embed:tomcat-embed-core >= 10.1.0-M1, < 10.1.52 10.1.52
Maven org.apache.tomcat.embed:tomcat-embed-core >= 11.0.0-M1, < 11.0.20 11.0.20

Details

As written in the advisory (Markdown source, shown as plain text).

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomcat via invalid chunk extension. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M1 through 9.0.115, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other, unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.20, 10.1.52 or 9.0.116, which fix the issue.

References

External links from the advisory. They lead to third-party sites.