{"answers":{"affected":"2 open source packages ship an affected version, including com.vaadin:vaadin-compatibility-server. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-31409 in the wild and no public exploit code.","fix":"Upgrade com.vaadin:vaadin-compatibility-server to 8.13.0 or later.","what":"CVE-2021-31409 is a high-severity denial of service vulnerability in Vaadin, published on 5 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-31409 and fix it if it is affected.\n\nWhat it is: CVE-2021-31409 is a high-severity denial of service vulnerability in Vaadin, published on 5 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-31409 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- com.vaadin:vaadin-compatibility-server (Maven): affected from 8.0.0; fixed in 8.13.0\n- com.vaadin:vaadin-compatibility-server (Maven): affected from 8.0.0; fixed in 8.13.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-31409/ (Markdown: https://insights.sbomify.com/CVE-2021-31409/index.md)","id":"CVE-2021-31409","markdown":"https://insights.sbomify.com/CVE-2021-31409/index.md","name":"CVE-2021-31409","record":{"aliases":["GHSA-c332-w4jm-55wv"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Vaadin Java library","requires_auth":"none","summary":"Attackers can cause denial of service via uncontrolled resource consumption by submitting malicious email addresses to the EmailValidator component.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Vaadin","cpe":[{"product":"vaadin","vendor":"vaadin"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Unsafe validation RegEx in EmailValidator component in com.vaadin:vaadin-compatibility-server versions 8.0.0 through 8.12.4 (Vaadin versions 8.0.0 through 8.12.4) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19","id":"CVE-2021-31409","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":2,"n_references":3,"next":{"headline":"Project sources exposure in Vaadin Designer","id":"CVE-2021-31410"},"packages":[{"ecosystem":"Maven","fixed":["8.13.0"],"introduced":["8.0.0"],"last_affected":[],"package":"com.vaadin:vaadin-compatibility-server","purl":null,"source":"GHSA-c332-w4jm-55wv"},{"ecosystem":"Maven","fixed":["8.13.0"],"introduced":["8.0.0"],"last_affected":[],"package":"com.vaadin:vaadin-compatibility-server","purl":"pkg:maven/com.vaadin/vaadin-compatibility-server","source":"GHSA-c332-w4jm-55wv"}],"prev":{"headline":"Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19","id":"CVE-2021-31408"},"products":["Vaadin","vaadin-compatibility-server"],"published":"2021-05-05","related":[{"cvss_score":7.5,"headline":"Regular expression Denial of Service (ReDoS) in EmailValidator class in Vaadin 7","id":"CVE-2020-36320","kev_date_added":null,"published":"2021-04-23"},{"cvss_score":6.1,"headline":"Reflected cross-site scripting in vaadin-menu-bar webjar resources in Vaadin 14","id":"CVE-2021-33611","kev_date_added":null,"published":"2021-11-02"},{"cvss_score":5.7,"headline":"Possible information disclosure in non visible components","id":"CVE-2023-25499","kev_date_added":null,"published":"2023-06-22"},{"cvss_score":5.7,"headline":"Possible information disclosure inside TreeGrid component with default data provider","id":"CVE-2022-29567","kev_date_added":null,"published":"2022-05-24"},{"cvss_score":5.4,"headline":"Stored cross-site scripting in Grid component in Vaadin 7 and 8","id":"CVE-2019-25028","kev_date_added":null,"published":"2021-04-23"},{"cvss_score":5.3,"headline":"Unauthorized session creation via reserved framework path access","id":"CVE-2026-2742","kev_date_added":null,"published":"2026-03-10"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["Vaadin"]},"summary":"Attackers can cause denial of service via uncontrolled resource consumption by submitting malicious email addresses to the EmailValidator component.","url":"https://insights.sbomify.com/CVE-2021-31409/"}