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CVE-2026-73180 is an insufficient session expiration vulnerability in Apache Tomcat. When an authenticated HTTP session has its session identifier changed after a WebSocket connection has been established under that session, Tomcat may fail to close the associated authenticated WebSocket connection when the HTTP session ends. This violates Jakarta WebSocket session-lifecycle requirements and leaves a connection active after its parent authenticated HTTP session has terminated. Affected releases are Tomcat 11.0.0-M1 through 11.0.24, 10.1.0-M1 through 10.1.57, and 9.0.0.M1 through 9.0.120. End-of-life 8.5.0 through 8.5.100 and 7.0.43 through 7.0.109 are also known to be affected.
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14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Tomcat WebSocket session-management flaw in which an authenticated WebSocket session can remain active after its associated HTTP session ends.
A Tomcat session-management flaw in which an authenticated WebSocket connection remains active after its associated HTTP session ends.
A low-severity Apache Tomcat session-management flaw that allows an authenticated WebSocket session to outlive its parent HTTP session after a session-ID change.
An insufficient session-expiration flaw in Apache Tomcat where a WebSocket session established under an authenticated HTTP session may remain open after the HTTP session ends if the HTTP session ID was changed.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.