CVE-2021-31408

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CVSS 3.1

7.1 high

EPSS

<1%p25

Published

Apr 23, 2021 (Apr 23, 2021)

Modified

Jun 17, 2026

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.

Vendors: vaadin
Products: flow, vaadin
Weakness: CWE-613
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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