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.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.6, requiring local system access to exploit but requires specific conditions to be met though user interaction is required . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), for affected systems.
Reported in 2025, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2025-05-22T17:15:25.033
2026-04-15T00:35:42.020
Deferred
CVSSv3.1: 5.6 (MEDIUM)
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