Description
Non-constant-time comparison of CSRF tokens in endpoint request handler in com.vaadin:flow-server versions 3.0.0 through 5.0.3 (Vaadin 15.0.0 through 18.0.6), and com.vaadin:fusion-endpoint version 6.0.0 (Vaadin 19.0.0) allows attacker to guess a security token for Fusion endpoints via timing attack.
Scores
CVSS v3
4.0
EPSS
0.0005
EPSS Percentile
16.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Details
CWE
CWE-208
CWE-203
Status
published
Products (5)
com.vaadin/flow-server
3.0.0 - 5.0.4Maven
vaadin/flow
6.0.0
vaadin/flow
3.0.0 - 5.0.4
vaadin/vaadin
19.0.0
vaadin/vaadin
15.0.0 - 18.0.7
Published
Apr 23, 2021
Tracked Since
Feb 18, 2026