CVE-2021-31408: Insufficient Session Expiration

April 23, 2021 (updated May 4, 2021)

Authentication.logout() helper in com.vaadin:flow-client uses incorrect HTTP method, which, in combination with Spring Security CSRF protection, allows local attackers to access Fusion endpoints after the user attempted to log out.

References

nvd.nist.gov/vuln/detail/CVE-2021-31408
vaadin.com/security/cve-2021-31408

Code Behaviors & Features

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