CVE-2021-31406

Timing side channel vulnerability in endpoint request handler in Vaadin 15-19

Published Apr 23, 2021 CVSS 3.1 · 4 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-0850 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.
Github GHSA Github GHSA GHSA-p7jq-v8jp-j424 Timing side channel vulnerability in endpoint request handler in Vaadin 15-19
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
Vaadin
Published
Updated
Sep 17, 2024, 12:02 AM
Reserved
Apr 15, 2021, 12:00 AM
Status
Modified
Published
Apr 23, 2021, 4:15 PM
Modified
Jun 17, 2026, 3:51 AM