GHSA-r6j3-px5g-cq3x Apache Tomcat Improper Input Validation vulnerability

• Maven org.apache.tomcat:tomcat: >= 11.0.0-M1, < 11.0.0-M12 → fixed in 11.0.0-M12 • Maven org.apache.tomcat:tomcat: >= 10.1.0-M1, < 10.1.14 → fixed in 10.1.14 • Maven org.apache.tomcat:tomcat: >= 9.0.0-M1, < 9.0.81 → fixed in 9.0.81 • Maven org.apache.tomcat:tomcat: >= 8.5.0, < 8.5.94 → fixed in 8.5.94 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 11.0.0-M1, < 11.0.0-M12 → fixed in 11.0.0-M12 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 10.1.0-M1, < 10.1.14 → fixed in 10.1.14 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 9.0.0-M1, < 9.0.81 → fixed in 9.0.81 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 8.5.0, < 8.5.94 → fixed in 8.5.94 • Maven org.apache.tomcat:tomcat-coyote: >= 11.0.0-M1, < 11.0.0-M12 → fixed in 11.0.0-M12 • Maven org.apache.tomcat:tomcat-coyote: >= 10.1.0-M1, < 10.1.14 → fixed in 10.1.14 • Maven org.apache.tomcat:tomcat-coyote: >= 9.0.0-M1, < 9.0.81 → fixed in 9.0.81 • Maven org.apache.tomcat:tomcat-coyote: >= 8.5.0, < 8.5.94 → fixed in 8.5.94

Improper Input Validation vulnerability in Apache Tomcat. Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer header could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.