CVE-2026-104054calcom cal.diy PBAC Permission BookingAccessService.ts doesUserIdHaveAccessToBooking authorization
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A security flaw has been discovered in calcom cal.diy up to 6.2.0. This affects the function doesUserIdHaveAccessToBooking of the file BookingAccessService.ts of the component PBAC Permission Engine. Performing a manipulation results in missing authorization. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The pull request to fix this issue awaits acceptance.
- CVSS
- 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C
- Weakness (CWE)
- CWE-862, CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Oct 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
calcom cal.diy calcom:cal.diy | 6.0; 6.1; 6.2.0 | CNA record |
References
- https://vuldb.com/vuln/412762vdb-entry, technical-description
- https://vuldb.com/vuln/412762/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-104054third-party-advisory
- https://vuldb.com/submit/959492third-party-advisory
- https://github.com/calcom/cal.diy/issues/29802exploit, issue-tracking
- https://github.com/calcom/cal.diy/pull/30253issue-tracking, patch
- https://github.com/calcom/cal.diy/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.