{"id":"CVE-2026-100373","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-100373","generatedAt":"2026-10-28T01:03:01.298Z","title":"OpenMetadata through 2.0.2 contains a server-side request forgery vulnerability in the URLValidator.validateURL function that fails to properly resolve DNS hostnames and validate internal addresses.","description":"OpenMetadata through 2.0.2 contains a server-side request forgery vulnerability in the URLValidator.validateURL function that fails to properly resolve DNS hostnames and validate internal addresses. Users permitted to create or update EventSubscription can set webhook destinations to internal hosts, allowing the server to send requests to private networks and cloud metadata endpoints while returning HTTP status codes that enable blind SSRF probing.","published":"2026-09-25T20:17:06.000Z","lastModified":"2026-09-25T21:17:21.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":5.1,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-918"],"affected":[],"epss":{"score":0.00262,"percentile":0.17876,"date":"2026-10-26","history":[{"date":"2026-09-26","score":0.00262,"percentile":0.16186}]},"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 (0.26%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-25T20:17:06.000Z","detail":{"score":"5.1","severity":"MEDIUM","publishedAt":"2026-09-25T20:17:06.293Z"},"summary":"New CVE, medium severity (CVSS 5.1)."}],"references":[{"url":"https://gist.github.com/naif-alfardan/8a69e0648e11b07abe63f949346179c1","source":"disclosure@vulncheck.com"},{"url":"https://github.com/open-metadata/OpenMetadata","source":"disclosure@vulncheck.com"},{"url":"https://github.com/open-metadata/OpenMetadata/blob/2.0.2-release/openmetadata-service/src/main/java/org/openmetadata/service/util/URLValidator.java#L34-L47","source":"disclosure@vulncheck.com"},{"url":"https://github.com/open-metadata/OpenMetadata/commit/8f44482ac89bad9227df5b7f79beca2efe50c05f","source":"disclosure@vulncheck.com"},{"url":"https://github.com/open-metadata/OpenMetadata/issues/32592","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/openmetadata-through-2.0.2-ssrf-via-webhook-url-validation-bypass","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-100373","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."}