{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-16624","assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","state":"PUBLISHED","assignerShortName":"certcc","dateReserved":"2026-07-22T15:02:38.700Z","datePublished":"2026-07-22T18:31:20.732Z","dateUpdated":"2026-07-27T17:10:37.711Z"},"containers":{"cna":{"title":"CVE-2026-16624","descriptions":[{"lang":"en","value":"Cal.com OSS ships lacks authorization on webhook teamId creation, allowing any authenticated user to create a webhook on any team via unvalidated teamId injection, then steal booking data, including fields like organizer/attendee emails and custom responses, and conditionally video-call passwords, by triggering webhook delivery."}],"source":{"discovery":"UNKNOWN"},"affected":[{"vendor":"Cal.com","product":"Cal.diy","versions":[{"status":"affected","version":"0","lessThan":"6.2.0","versionType":"custom"}]}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-639 Authorization Bypass Through User-Controlled Key"}]}],"references":[{"url":"https://github.com/calcom/cal.diy/security/advisories/GHSA-4fwh-xxpv-xfm6"},{"url":"https://vokecyber.com/research/calcom-cross-tenant-webhook-plant"}],"x_generator":{"engine":"VINCE 3.0.43","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-16624"},"providerMetadata":{"orgId":"37e5125f-f79b-445b-8fad-9564f167944b","shortName":"certcc","dateUpdated":"2026-07-22T18:31:30.694Z"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-639","lang":"en","description":"CWE-639 Authorization Bypass Through User-Controlled Key"}]}],"references":[{"url":"https://vokecyber.com/research/calcom-cross-tenant-webhook-plant","tags":["exploit"]}],"metrics":[{"cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":9.6,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-07-27T17:09:33.166013Z","id":"CVE-2026-16624","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-27T17:10:37.711Z"}}]}}