---
id: CVE-2026-104054
title: A security flaw has been discovered in calcom cal.diy up to 6.2.0
summary: >-
  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 …
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-862
  - CWE-863
vendor: calcom
product: cal.diy
affected:
  - cal.diy 6.0
  - cal.diy 6.1
  - cal.diy 6.2.0
published: '2026-10-02'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T02:17:01.920'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104054'
references:
  - url: 'https://github.com/calcom/cal.diy/'
    label: cna@vuldb.com
  - url: 'https://github.com/calcom/cal.diy/issues/29802'
    label: cna@vuldb.com
  - url: 'https://github.com/calcom/cal.diy/pull/30253'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-104054'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/959492'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/412762'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/412762/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-02T03:07:53.983Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.