The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.0.M21 and 8.5.0 to 8.5.15 bypassed a number of security checks that prevented dir

Summary

The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.0.M21 and 8.5.0 to 8.5.15 bypassed a number of security checks that prevented directory traversal attacks. It was therefore possible to bypass security constraints using a specially crafted URL.

Timeline

1. Aug 11, 2017, 2:00 AM UTCCVE published
2. Sep 17, 2024, 3:48 AM UTCRecord last updated
3. Oct 28, 2026EPSS reached 10%

   FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

• Apache Software Foundation Apache Tomcat

  9.0.0.M1 to 9.0.0.M21, 8.5.0 to 8.5.15

• org.apache.tomcat:tomcatMaven

  From 9.0.0.M1 · fixed in 9.0.0.M22

• org.apache.tomcat:tomcatMaven

  From 8.5.0 · fixed in 8.5.16

References 15