CVE-2026-68763

Summary

Uncontrolled Resource Consumption vulnerability in Apache Tomcat via an allocation leak in the HTTP/2 backlog tracking when a stream is reset

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.39 through 9.0.120.

The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.59 through 8.5.100. Other unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache Tomcat11.0.0-M1 <= 11.0.24affected
Apache Software FoundationApache Tomcat10.1.0-M1 <= 10.1.57affected
Apache Software FoundationApache Tomcat9.0.39 <= 9.0.120affected
Apache Software FoundationApache Tomcat8.5.59 <= 8.5.100affected
Apache Software FoundationApache Tomcat0 <= 7.0.109unaffected

Weaknesses

  • CWE-400: CWE-400 Uncontrolled Resource Consumption

References