CVE-2026-16624

CriticalCVSS 9.6/10Last modified Oct 24, 2026

Description

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.

Metrics

CVSS 3.1 9.6/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Weakness enumeration

CWE-639

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
Cal.com	Cal.diy	< 6.2.0

References

Timeline

Published: Jul 22, 2026
Last modified: Oct 24, 2026
NVD status: Awaiting Analysis

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