Security Bulletin: IBM DevOps Deploy / IBM UrbanCode Deploy (UCD) affected by an Uncontrolled Resource Consumption Vulnerability in Apache Tomcat (CVE-2026-68763)

Summary IBM DevOps Deploy / IBM UrbanCode Deploy UCD uses Apache Tomcat for its web interface and services. CVE-2026-68763. Vulnerability Details CVEID:CVE-2026-68763 DESCRIPTION: Uncontrolled Resource Consumption vulnerability in Apache Tomcat via an allocation leak in the HTTP/2 backlog trackin...

Uncontrolled Resource Consumption

Apache Tomcat is vulnerable to Uncontrolled Resource Consumption. The vulnerability is due to an allocation leak in HTTP/2 backlog tracking when streams are reset, which allows a remote attacker to repeatedly reset streams and consume server resources, potentially causing denial of service...

BIT-TOMCAT-2026-68763 Apache Tomcat: DoS via allocation leak in HTTP/2 backlog tracking when a stream is reset

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 through 11.0.24, from 10.1.0 through 10.1.57, from 9.0.39 through 9.0.120. The following versions were EOL at...

Allocation of Resources Without Limits or Throttling

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the HTTP/2 backlog tracking when a stream is reset. An attacker can exhaust system resources by repeatedl...

Allocation of Resources Without Limits or Throttling

Overview org.apache.tomcat:tomcat is an implementation of the Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket technologies. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the HTTP/2 backlog tracking when a...

EUVD-2026-66190

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...

CVE-2026-68763 Apache Tomcat: DoS via allocation leak in HTTP/2 backlog tracking when a stream is reset

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...

CVE-2026-68763

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...

CVE-2026-68763: Uncontrolled Resource Consumption

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...

PT-2026-81889

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.24 Apache Tomcat versions 10.1.0-M1 through 10.1.57 Apache Tomcat versions 9.0.39 through 9.0.120 Apache Tomcat versions 8.5.59 through 8.5.100 Description An uncontrolled resource consumption issu...

CVE-2024-56770

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc In general, 'qlen' of any classful qdisc should keep track of the number of packets that the qdisc itself and all of its children holds. In case of netem, 'qlen' only...