{"id":"CVE-2021-32053","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-32053","generatedAt":"2026-10-27T22:25:13.887Z","title":"JPA Server in HAPI FHIR before 5.4.0 allows a user to deny service (e.g., disable access to the database after the attack stops) via history requests.","description":"JPA Server in HAPI FHIR before 5.4.0 allows a user to deny service (e.g., disable access to the database after the attack stops) via history requests. This occurs because of a SELECT COUNT statement that requires a full index scan, with an accompanying large amount of server resources if there are many simultaneous history requests.","published":"2021-05-10T21:15:08.000Z","lastModified":"2026-06-17T03:52:44.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"cwe":["CWE-400"],"affected":["fhir/hapi fhir"],"epss":{"score":0.01587,"percentile":0.75431,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.59%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/hapifhir/hapi-fhir/issues/2641","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/hapifhir/hapi-fhir/pull/2642","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://hapifhir.io","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/hapifhir/hapi-fhir/issues/2641","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/hapifhir/hapi-fhir/pull/2642","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://hapifhir.io","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-32053","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}