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Package details: pkg:apache/tomcat@9.0.20
purl pkg:apache/tomcat@9.0.20
Next non-vulnerable version 9.0.21
Latest non-vulnerable version 11.0.21
Risk 4.0
Vulnerabilities affecting this package (1)
Vulnerability Summary Fixed by
VCID-ayrd-8ntf-hkh3
Aliases:
CVE-2022-25762
GHSA-h3ch-5pp2-vh6w
If a web application sends a WebSocket message concurrently with the WebSocket connection closing when running on Apache Tomcat 8.5.0 to 8.5.75 or Apache Tomcat 9.0.0.M1 to 9.0.20, it is possible that the application will continue to use the socket after it has been closed. The error handling triggered in this case could cause the a pooled object to be placed in the pool twice. This could result in subsequent connections using the same object concurrently which could result in data being returned to the wrong use and/or other errors.
9.0.21
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (1)
Vulnerability Summary Aliases
VCID-39e3-jfbg-s3hk The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS. CVE-2019-10072
GHSA-q4hg-rmq2-52q9

Date Actor Action Vulnerability Source VulnerableCode Version
2026-04-01T12:38:08.726115+00:00 Apache Tomcat Importer Fixing VCID-39e3-jfbg-s3hk https://tomcat.apache.org/security-9.html 38.0.0
2026-04-01T12:38:08.690672+00:00 Apache Tomcat Importer Affected by VCID-ayrd-8ntf-hkh3 https://tomcat.apache.org/security-9.html 38.0.0