| Package | Affected versions | Patched versions |
|---|---|---|
| com.vaadin:flow-server | ≥ 3.0.0, < 5.0.4≥ 6.0.0, < 6.0.1 | 5.0.46.0.1 |
| flow | = 6.0.0≥ 3.0.0, < 5.0.4 | 5.0.4 |
| vaadin | = 19.0.0≥ 15.0.0, < 18.0.7 | 18.0.7 |
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.
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