{"schema_version":1,"title":"com.vaadin:flow-server (Maven) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 13 vulnerabilities in com.vaadin:flow-server (Maven): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-2742, was published on 10 March 2026.","url":"https://junglewise.ai/threats/technologies/com-vaadin-flow-server","json_url":"https://junglewise.ai/threats/technologies/com-vaadin-flow-server.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/com-vaadin-flow-server","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":true,"counts":{"high":0,"all_time":13,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":1},"latest":[{"cve":"CVE-2026-2742","cvss":4,"epss":0.0046,"slug":"cve-2026-2742-vaadin-vulnerable-to-authentication-bypass-when-accessing-the","title":"Vaadin Vulnerable to Authentication Bypass When Accessing the /VAADIN Endpoint Without a Trailing Slash","severity":"medium","exploited":false,"published_at":"2026-03-10T18:31:21+00:00","url":"https://junglewise.ai/threats/cve-2026-2742-vaadin-vulnerable-to-authentication-bypass-when-accessing-the"},{"cve":"CVE-2023-25499","cvss":3.1,"epss":0.0058,"slug":"cve-2023-25499-vaadin-vulnerable-to-possible-information-disclosure-in-non","title":"Vaadin vulnerable to possible information disclosure in non visible components.","severity":"low","exploited":false,"published_at":"2023-06-22T20:01:11+00:00","url":"https://junglewise.ai/threats/cve-2023-25499-vaadin-vulnerable-to-possible-information-disclosure-in-non"},{"cve":"CVE-2023-25500","cvss":3.1,"epss":0.0051,"slug":"cve-2023-25500-vaadin-vulnerable-to-possible-information-disclosure-of-class-and","title":"Vaadin vulnerable to possible information disclosure of class and method names in RPC response","severity":"low","exploited":false,"published_at":"2023-06-22T20:01:03+00:00","url":"https://junglewise.ai/threats/cve-2023-25500-vaadin-vulnerable-to-possible-information-disclosure-of-class-and"},{"cvss":3.1,"slug":"possible-route-enumeration-in-production-mode-via-routenotfounderror-4209bf91","title":"Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19","severity":"low","exploited":false,"published_at":"2021-10-13T18:56:12+00:00","url":"https://junglewise.ai/threats/possible-route-enumeration-in-production-mode-via-routenotfounderror-4209bf91"},{"cvss":3.1,"slug":"reflected-cross-site-scripting-in-development-mode-handler-in-vaadin-41b16ed3","title":"Reflected cross-site scripting in development mode handler in Vaadin","severity":"low","exploited":false,"published_at":"2021-06-28T16:52:45+00:00","url":"https://junglewise.ai/threats/reflected-cross-site-scripting-in-development-mode-handler-in-vaadin-41b16ed3"},{"cvss":3.1,"slug":"insecure-temporary-directory-usage-in-frontend-build-functionality-of-0a0b49ee","title":"Insecure temporary directory usage in frontend build functionality of Vaadin 14 and 15-19","severity":"low","exploited":false,"published_at":"2021-05-06T15:27:04+00:00","url":"https://junglewise.ai/threats/insecure-temporary-directory-usage-in-frontend-build-functionality-of-0a0b49ee"},{"cve":"CVE-2018-25007","cvss":3.1,"epss":0.0057,"slug":"cve-2018-25007-unauthorized-client-side-property-update-in-uidl-request-handler","title":"Unauthorized client-side property update in UIDL request handler in Vaadin 10 and 11","severity":"low","exploited":false,"published_at":"2021-04-19T14:53:09+00:00","url":"https://junglewise.ai/threats/cve-2018-25007-unauthorized-client-side-property-update-in-uidl-request-handler"},{"cve":"CVE-2019-25027","cvss":3.1,"epss":0.0067,"slug":"cve-2019-25027-reflected-cross-site-scripting-in-default-routenotfounderror-view","title":"Reflected cross-site scripting in default RouteNotFoundError view in Vaadin 10 and 11-13","severity":"low","exploited":false,"published_at":"2021-04-19T14:52:29+00:00","url":"https://junglewise.ai/threats/cve-2019-25027-reflected-cross-site-scripting-in-default-routenotfounderror-view"},{"cve":"CVE-2020-36319","cvss":3.1,"epss":0.01,"slug":"cve-2020-36319-potential-sensitive-data-exposure-in-applications-using-vaadin-15","title":"Potential sensitive data exposure in applications using Vaadin 15","severity":"low","exploited":false,"published_at":"2021-04-19T14:52:14+00:00","url":"https://junglewise.ai/threats/cve-2020-36319-potential-sensitive-data-exposure-in-applications-using-vaadin-15"},{"cve":"CVE-2020-36321","cvss":3.1,"epss":0.0121,"slug":"cve-2020-36321-directory-traversal-in-development-mode-handler-in-vaadin-14-and","title":"Directory traversal in development mode handler in Vaadin 14 and 15-17","severity":"low","exploited":false,"published_at":"2021-04-19T14:51:58+00:00","url":"https://junglewise.ai/threats/cve-2020-36321-directory-traversal-in-development-mode-handler-in-vaadin-14-and"},{"cve":"CVE-2021-31404","cvss":3.1,"epss":0.0021,"slug":"cve-2021-31404-timing-side-channel-vulnerability-in-uidl-request-handler-in","title":"Timing side channel vulnerability in UIDL request handler in Vaadin 10, 11-14, and 15-18","severity":"low","exploited":false,"published_at":"2021-04-19T14:51:25+00:00","url":"https://junglewise.ai/threats/cve-2021-31404-timing-side-channel-vulnerability-in-uidl-request-handler-in"},{"cve":"CVE-2021-31407","cvss":3.1,"epss":0.0238,"slug":"cve-2021-31407-osgi-applications-using-vaadin-12-14-and-19-vulnerable-to-server","title":"OSGi applications using Vaadin 12-14 and 19 vulnerable to server classes and resources exposure","severity":"low","exploited":false,"published_at":"2021-04-19T14:50:49+00:00","url":"https://junglewise.ai/threats/cve-2021-31407-osgi-applications-using-vaadin-12-14-and-19-vulnerable-to-server"},{"cve":"CVE-2021-31406","cvss":3.1,"epss":0.0021,"slug":"cve-2021-31406-timing-side-channel-vulnerability-in-endpoint-request-handler-in","title":"Timing side channel vulnerability in endpoint request handler in Vaadin 15-19","severity":"low","exploited":false,"published_at":"2021-04-19T14:50:38+00:00","url":"https://junglewise.ai/threats/cve-2021-31406-timing-side-channel-vulnerability-in-endpoint-request-handler-in"}],"weekly":[{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"org.jenkins-ci.main:jenkins-core (Maven)","slug":"org-jenkins-ci-main-jenkins-core","vulnerabilities":259,"url":"https://junglewise.ai/threats/technologies/org-jenkins-ci-main-jenkins-core"},{"name":"org.apache.tomcat:tomcat (Maven)","slug":"org-apache-tomcat-tomcat","vulnerabilities":169,"url":"https://junglewise.ai/threats/technologies/org-apache-tomcat-tomcat"},{"name":"com.liferay.portal:release.portal.bom (Maven)","slug":"com-liferay-portal-release-portal-bom","vulnerabilities":159,"url":"https://junglewise.ai/threats/technologies/com-liferay-portal-release-portal-bom"},{"name":"com.liferay.portal:release.dxp.bom (Maven)","slug":"com-liferay-portal-release-dxp-bom","vulnerabilities":125,"url":"https://junglewise.ai/threats/technologies/com-liferay-portal-release-dxp-bom"},{"name":"org.keycloak:keycloak-services (Maven)","slug":"org-keycloak-keycloak-services","vulnerabilities":122,"url":"https://junglewise.ai/threats/technologies/org-keycloak-keycloak-services"},{"name":"com.fasterxml.jackson.core:jackson-databind (Maven)","slug":"com-fasterxml-jackson-core-jackson-databind","vulnerabilities":86,"url":"https://junglewise.ai/threats/technologies/com-fasterxml-jackson-core-jackson-databind"},{"name":"org.apache.tomcat.embed:tomcat-embed-core (Maven)","slug":"org-apache-tomcat-embed-tomcat-embed-core","vulnerabilities":83,"url":"https://junglewise.ai/threats/technologies/org-apache-tomcat-embed-tomcat-embed-core"},{"name":"org.apache.struts:struts2-core (Maven)","slug":"org-apache-struts-struts2-core","vulnerabilities":60,"url":"https://junglewise.ai/threats/technologies/org-apache-struts-struts2-core"},{"name":"org.keycloak:keycloak-core (Maven)","slug":"org-keycloak-keycloak-core","vulnerabilities":57,"url":"https://junglewise.ai/threats/technologies/org-keycloak-keycloak-core"},{"name":"org.xwiki.platform:xwiki-platform-oldcore (Maven)","slug":"org-xwiki-platform-xwiki-platform-oldcore","vulnerabilities":46,"url":"https://junglewise.ai/threats/technologies/org-xwiki-platform-xwiki-platform-oldcore"},{"name":"org.apache.tomcat:tomcat-catalina (Maven)","slug":"org-apache-tomcat-tomcat-catalina","vulnerabilities":44,"url":"https://junglewise.ai/threats/technologies/org-apache-tomcat-tomcat-catalina"},{"name":"org.elasticsearch:elasticsearch (Maven)","slug":"org-elasticsearch-elasticsearch","vulnerabilities":41,"url":"https://junglewise.ai/threats/technologies/org-elasticsearch-elasticsearch"}],"technology":{"hub":true,"name":"com.vaadin:flow-server (Maven)","slug":"com-vaadin-flow-server","vendor":{"hub":true,"name":"Maven","slug":"maven","url":"https://junglewise.ai/threats/vendors/maven"},"aliases":[],"homepage":"https://vaadin.com/","description":"Vaadin Flow server-side framework for building web applications.","url":"https://junglewise.ai/threats/technologies/com-vaadin-flow-server"},"most_severe":[{"cve":"CVE-2026-2742","cvss":4,"epss":0.0046,"slug":"cve-2026-2742-vaadin-vulnerable-to-authentication-bypass-when-accessing-the","title":"Vaadin Vulnerable to Authentication Bypass When Accessing the /VAADIN Endpoint Without a Trailing Slash","severity":"medium","exploited":false,"published_at":"2026-03-10T18:31:21+00:00","url":"https://junglewise.ai/threats/cve-2026-2742-vaadin-vulnerable-to-authentication-bypass-when-accessing-the"},{"cve":"CVE-2021-31407","cvss":3.1,"epss":0.0238,"slug":"cve-2021-31407-osgi-applications-using-vaadin-12-14-and-19-vulnerable-to-server","title":"OSGi applications using Vaadin 12-14 and 19 vulnerable to server classes and resources exposure","severity":"low","exploited":false,"published_at":"2021-04-19T14:50:49+00:00","url":"https://junglewise.ai/threats/cve-2021-31407-osgi-applications-using-vaadin-12-14-and-19-vulnerable-to-server"},{"cve":"CVE-2020-36321","cvss":3.1,"epss":0.0121,"slug":"cve-2020-36321-directory-traversal-in-development-mode-handler-in-vaadin-14-and","title":"Directory traversal in development mode handler in Vaadin 14 and 15-17","severity":"low","exploited":false,"published_at":"2021-04-19T14:51:58+00:00","url":"https://junglewise.ai/threats/cve-2020-36321-directory-traversal-in-development-mode-handler-in-vaadin-14-and"},{"cve":"CVE-2020-36319","cvss":3.1,"epss":0.01,"slug":"cve-2020-36319-potential-sensitive-data-exposure-in-applications-using-vaadin-15","title":"Potential sensitive data exposure in applications using Vaadin 15","severity":"low","exploited":false,"published_at":"2021-04-19T14:52:14+00:00","url":"https://junglewise.ai/threats/cve-2020-36319-potential-sensitive-data-exposure-in-applications-using-vaadin-15"},{"cve":"CVE-2019-25027","cvss":3.1,"epss":0.0067,"slug":"cve-2019-25027-reflected-cross-site-scripting-in-default-routenotfounderror-view","title":"Reflected cross-site scripting in default RouteNotFoundError view in Vaadin 10 and 11-13","severity":"low","exploited":false,"published_at":"2021-04-19T14:52:29+00:00","url":"https://junglewise.ai/threats/cve-2019-25027-reflected-cross-site-scripting-in-default-routenotfounderror-view"},{"cve":"CVE-2023-25499","cvss":3.1,"epss":0.0058,"slug":"cve-2023-25499-vaadin-vulnerable-to-possible-information-disclosure-in-non","title":"Vaadin vulnerable to possible information disclosure in non visible components.","severity":"low","exploited":false,"published_at":"2023-06-22T20:01:11+00:00","url":"https://junglewise.ai/threats/cve-2023-25499-vaadin-vulnerable-to-possible-information-disclosure-in-non"},{"cve":"CVE-2018-25007","cvss":3.1,"epss":0.0057,"slug":"cve-2018-25007-unauthorized-client-side-property-update-in-uidl-request-handler","title":"Unauthorized client-side property update in UIDL request handler in Vaadin 10 and 11","severity":"low","exploited":false,"published_at":"2021-04-19T14:53:09+00:00","url":"https://junglewise.ai/threats/cve-2018-25007-unauthorized-client-side-property-update-in-uidl-request-handler"},{"cve":"CVE-2023-25500","cvss":3.1,"epss":0.0051,"slug":"cve-2023-25500-vaadin-vulnerable-to-possible-information-disclosure-of-class-and","title":"Vaadin vulnerable to possible information disclosure of class and method names in RPC response","severity":"low","exploited":false,"published_at":"2023-06-22T20:01:03+00:00","url":"https://junglewise.ai/threats/cve-2023-25500-vaadin-vulnerable-to-possible-information-disclosure-of-class-and"},{"cve":"CVE-2021-31404","cvss":3.1,"epss":0.0021,"slug":"cve-2021-31404-timing-side-channel-vulnerability-in-uidl-request-handler-in","title":"Timing side channel vulnerability in UIDL request handler in Vaadin 10, 11-14, and 15-18","severity":"low","exploited":false,"published_at":"2021-04-19T14:51:25+00:00","url":"https://junglewise.ai/threats/cve-2021-31404-timing-side-channel-vulnerability-in-uidl-request-handler-in"},{"cve":"CVE-2021-31406","cvss":3.1,"epss":0.0021,"slug":"cve-2021-31406-timing-side-channel-vulnerability-in-endpoint-request-handler-in","title":"Timing side channel vulnerability in endpoint request handler in Vaadin 15-19","severity":"low","exploited":false,"published_at":"2021-04-19T14:50:38+00:00","url":"https://junglewise.ai/threats/cve-2021-31406-timing-side-channel-vulnerability-in-endpoint-request-handler-in"}],"generated_at":"2026-11-09T03:07:00.176479+00:00"}