{"schemaVersion":3,"id":"CVE-2026-112043","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A weakness has been identified in calcom cal.com and cal.diy up to 6.2.0. Impacted is the function createWebhookProcedure of the file packages/trpc/server/routers/viewer/webhook/util.ts of the component Webhook Handler. Executing a manipulation of the argument ID can lead to authorization bypass. It is possible to launch the attack remotely. The pull request to fix this issue awaits acceptance.","dates":{"published":"2026-10-19T02:30:14.914Z","modified":"2026-10-19T16:36:31.150Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"2.0","versionLabel":"v2.0","source":"CVE.org","vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:ND/RC:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":5.3,"severity":"medium","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":6.3,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"CVE.org","score":6.5,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:ND/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":5.3,"severity":"medium","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.5,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00296,"percentile":0.21093,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-19T00:00:00.000Z","score":0.00296,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00296,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00296,"percentile":0.21093}],"last30":[{"date":"2026-10-19T00:00:00.000Z","score":0.00296,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00296,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00296,"percentile":0.21093}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-285","name":"Improper Authorization","description":"The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/285.html"},{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key","description":"The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/639.html"}],"affected":[{"vendor":"calcom","product":"cal.com","name":"cal.com","label":"cal.com","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"6.0","noFixRecorded":false,"fixedIn":null},{"text":"6.1","noFixRecorded":false,"fixedIn":null},{"text":"6.2.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"6.0 | 6.1 | 6.2.0","eol":null,"hubHref":"/vendor/calcom/calcom"},{"vendor":"calcom","product":"cal.diy","name":"cal.diy","label":"cal.diy","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"6.0","noFixRecorded":false,"fixedIn":null},{"text":"6.1","noFixRecorded":false,"fixedIn":null},{"text":"6.2.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"6.0 | 6.1 | 6.2.0","eol":null,"hubHref":"/vendor/calcom/caldiy"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://vuldb.com/vuln/421691","label":"vuldb.com/vuln/421691","hostname":"vuldb.com","tags":["VDB Entry","Technical Description"]},{"url":"https://vuldb.com/vuln/421691/cti","label":"vuldb.com/vuln/421691/cti","hostname":"vuldb.com","tags":["Signature","Permissions Required"]},{"url":"https://vuldb.com/cve/CVE-2026-112043","label":"vuldb.com/cve/CVE-2026-112043","hostname":"vuldb.com","tags":["Third Party Advisory"]},{"url":"https://vuldb.com/submit/1009017","label":"vuldb.com/submit/1009017","hostname":"vuldb.com","tags":["Third Party Advisory"]},{"url":"https://github.com/calcom/cal.diy/issues/29982","label":"github.com/calcom/cal.diy/issues/29982","hostname":"github.com","tags":["Issue Tracking"]},{"url":"https://github.com/calcom/cal.diy/pull/30223","label":"github.com/calcom/cal.diy/pull/30223","hostname":"github.com","tags":["Issue Tracking","Patch"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-19T02:30:14.914Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-19T16:36:31.150Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T23:47:58.544Z","stale":false,"partial":false}}