{"id":"CVE-2021-31407","aliases":["GHSA-25xc-jwfq-39jw"],"url":"https://o3.security/vulnerability/CVE-2021-31407","summary":"OSGi applications using Vaadin 12-14 and 19 vulnerable to server classes and resources exposure","details":"Vulnerability in OSGi integration in `com.vaadin:flow-server` versions 1.2.0 through 2.4.7 (Vaadin 12.0.0 through 14.4.9), and 6.0.0 through 6.0.1 (Vaadin 19.0.0) allows attacker to access application classes and resources on the server via crafted HTTP request.\n\n- https://vaadin.com/security/cve-2021-31407","published":"2021-04-23T16:15:08.767Z","modified":"2026-10-24T10:51:24.644999560Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.02382,"percentile":0.82904,"asOf":"2026-09-10"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"com.vaadin:flow-server","fixedVersion":"2.4.8"},{"ecosystem":"Maven","name":"com.vaadin:flow-server","fixedVersion":"6.0.1"}],"fix":{"url":"https://github.com/vaadin/flow/pull/10229","label":"vaadin/flow#10229"},"references":[{"type":"ADVISORY","url":"https://vaadin.com/security/cve-2021-31407"},{"type":"FIX","url":"https://github.com/vaadin/flow/pull/10229"},{"type":"FIX","url":"https://github.com/vaadin/flow/pull/10269"},{"type":"FIX","url":"https://github.com/vaadin/osgi/issues/50"},{"type":"WEB","url":"https://github.com/vaadin/flow/security/advisories/GHSA-25xc-jwfq-39jw"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31407"},{"type":"PACKAGE","url":"https://github.com/vaadin/flow"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:51:24.644999560Z"}}