Exposure of Private Personal Information to an Unauthorized Actor Affecting org.apache.tomcat:tomcat-websocket package, versions [8.5.24,9.0.0.M1)[9.0.2,9.0.118)[10.1.0-M1,10.1.55)[11.0.0-M1,11.0.22)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGAPACHETOMCAT-16643268
- published13 May 2026
- disclosed12 May 2026
- creditlokerxx
Introduced: 12 May 2026
CVE-2026-42498 (opens in a new tab)How to fix?
Upgrade org.apache.tomcat:tomcat-websocket to version 9.0.0.M1, 9.0.118, 10.1.55, 11.0.22 or higher.
Overview
org.apache.tomcat:tomcat-websocket is a Tomcat WebSocket (JSR356) implementation.
Affected versions of this package are vulnerable to Exposure of Private Personal Information to an Unauthorized Actor in WebSocket client during authentication. An attacker can obtain sensitive HTTP authentication headers by initiating a WebSocket handshake with a malicious host.