wire-webapp Has Insufficient Session Invalidation after User Logout
Vulnerability Description
wire-webapp is the web application for the open-source messaging service Wire. A change caused a regression resulting in sessions not being properly invalidated. A user that logged out of the Wire webapp, could have been automatically logged in again after re-opening the application. This does not happen when the user is logged in as a temporary user by selecting "This is a public computer" during login or the user selects "Delete all your personal information and conversations on this device" upon logout. The underlying issue has been fixed with wire-webapp version 2025-05-20-production.0. As a workaround, this behavior can be prevented by either deleting all information upon logout as well as logging in as a temporary client.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
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