CVE-2026-104054

MEDIUM 6.3

calcom cal.diy PBAC Permission BookingAccessService.ts doesUserIdHaveAccessToBooking authorization

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862 CWE-863
Vendor	calcom
Product	cal.diy
Published	Oct 2, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

calcom / cal.diy

6.0 6.1 6.2.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/412762 vuldb.com: https://vuldb.com/vuln/412762/cti vuldb.com: https://vuldb.com/cve/CVE-2026-104054 vuldb.com: https://vuldb.com/submit/959492 github.com: https://github.com/calcom/cal.diy/issues/29802 github.com: https://github.com/calcom/cal.diy/pull/30253 github.com: https://github.com/calcom/cal.diy/

Credits

🔍 geochen (VulDB User) VulDB CNA Team