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GHSA-xwg3-qrcg-w9x6

Timing side channel vulnerability in UIDL request handler in Vaadin 10, 11-14, and 15-18

Source: GitHub Advisory Database (reviewed) Moderate CVE-2021-31404

Packages

EcosystemPackageAffectedFixed in
Maven com.vaadin:flow-server >= 1.0.0, < 1.0.14 1.0.14
Maven com.vaadin:flow-server >= 1.1.0, < 2.4.7 2.4.7
Maven com.vaadin:flow-server >= 3.0.0, < 5.0.3 5.0.3

Details

As written in the advisory (Markdown source, shown as plain text).

Non-constant-time comparison of CSRF tokens in UIDL request handler in `com.vaadin:flow-server` versions 1.0.0 through 1.0.13 (Vaadin 10.0.0 through 10.0.16), 1.1.0 prior to 2.0.0 (Vaadin 11 through 13), 2.0.0 through 2.4.6 (Vaadin 14.0.0 through 14.4.6), 3.0.0 prior to 5.0.0 (Vaadin 15 prior to 18), and 5.0.0 through 5.0.2 (Vaadin 18.0.0 through 18.0.5) allows attacker to guess a security token via timing attack. - https://vaadin.com/security/cve-2021-31404

References

External links from the advisory. They lead to third-party sites.