{"id":"CVE-2021-31403","aliases":["EUVD-2021-0784","GHSA-75xc-qvxh-27f8"],"status":"published","title":"Timing side channel vulnerability in UIDL request handler in Vaadin 7 and 8","description":"Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:vaadin-server versions 7.0.0 through 7.7.23 (Vaadin 7.0.0 through 7.7.23), and 8.0.0 through 8.12.2 (Vaadin 8.0.0 through 8.12.2) allows attacker to guess a security token via timing 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Advisory","advisory","web"]},{"url":"https://github.com/vaadin/framework/pull/12190","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/vaadin/framework/pull/12188","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/vaadin/framework/security/advisories/GHSA-75xc-qvxh-27f8","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31403","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-75xc-qvxh-27f8"}],"sources":{"cve":[{"id":"CVE-2021-31403","title":"Timing side channel vulnerability in UIDL request handler in Vaadin 7 and 8","description":"Non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:vaadin-server versions 7.0.0 through 7.7.23 (Vaadin 7.0.0 through 7.7.23), and 8.0.0 through 8.12.2 (Vaadin 8.0.0 through 8.12.2) allows attacker to guess a security token via timing 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