CVE-2022-25762
HighCVSS 8.6Exploitation Probability (EPSS)
Very high risk95th percentile - higher than 95% of all known CVEs
Summary
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.
Risk Assessment
This could lead to data disclosure between users or other errors, threatening data confidentiality and integrity.
Recommendation
Update Apache Tomcat to a version containing the fix (e.g., 8.5.76 or 9.0.21 or later).
Original NVD description (English source)
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.