CVE-2021-31408
Last modified
CVE-2021-31408 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vaadin | Flow | >= 5.0.0, < 6.0.0 |
| Vaadin | Flow | >= 6.0.0, < 6.0.5 |
| Vaadin | Vaadin | >= 19.0.0, < 19.0.4 |
| Vaadin | Vaadin | 18.0.0 |
References
- https://github.com/vaadin/flow/pull/10577Patch, Third Party Advisory
- https://vaadin.com/security/cve-2021-31408Vendor Advisory
- https://github.com/vaadin/flow/pull/10577Patch, Third Party Advisory
- https://vaadin.com/security/cve-2021-31408Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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