HIGH 7.5 NVD

CVE-2026-77791

Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack. This issue affects Apache To

Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack. This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.88 through 8.5.100. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.

References

https://lists.apache.org/thread/mb1pjjooqytrl6hbvbt3rw1lqwlon4cz

Published: 2026-09-23 · Source: NVD · Feed updated: 2026-09-23

This high severity vulnerability with a CVSS score of 7.5 was published on 2026-09-23 via NVD.

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