Vulnerability Description
Authentication.logout() helper in com.vaadin:flow-client versions 5.0.0 prior to 6.0.0 (Vaadin 18), and 6.0.0 through 6.0.4 (Vaadin 19.0.0 through 19.0.3) 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vaadin | Flow | >= 5.0.0, < 6.0.0 |
| Vaadin | Vaadin | >= 19.0.0, < 19.0.4 |
Related Weaknesses (CWE)
References
- https://github.com/vaadin/flow/pull/10577PatchThird Party Advisory
- https://vaadin.com/security/cve-2021-31408Vendor Advisory
- https://github.com/vaadin/flow/pull/10577PatchThird Party Advisory
- https://vaadin.com/security/cve-2021-31408Vendor Advisory
FAQ
What is CVE-2021-31408?
CVE-2021-31408 is a vulnerability with a CVSS score of 6.3 (MEDIUM). Authentication.logout() helper in com.vaadin:flow-client versions 5.0.0 prior to 6.0.0 (Vaadin 18), and 6.0.0 through 6.0.4 (Vaadin 19.0.0 through 19.0.3) uses incorrect HTTP method, which, in combina...
How severe is CVE-2021-31408?
CVE-2021-31408 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-31408?
Check the references section above for vendor advisories and patch information. Affected products include: Vaadin Flow, Vaadin Vaadin.