PT-2026-81889 · Apache · Apache Tomcat

Zhen Kong

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CVE-2026-68763

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Published

2026-08-25

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Updated

2026-09-11

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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 issue exists due to an allocation leak in the HTTP/2 backlog tracking that occurs when a stream is reset.
Recommendations Upgrade to version 11.0.25. Upgrade to version 10.1.58. Upgrade to version 9.0.121.

Exploit

Fix

DoS

Resource Exhaustion

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Weakness Enumeration

CWE-400

Related Identifiers

BIT-TOMCAT-2026-68763
CVE-2026-68763
OPENSUSE-SU-2026:11759-1
OPENSUSE-SU-2026:11760-1
OPENSUSE-SU-2026:11761-1
OPENSUSE-SU-2026:21810-1
OPENSUSE-SU-2026:21811-1

Affected Products

Apache Tomcat