Description

Cal.com is open-source scheduling software. From 3.1.6 to before 6.0.7, there is a vulnerability in a custom NextAuth JWT callback that allows attackers to gain full authenticated access to any user's account by supplying a target email address via session.update(). This vulnerability is fixed in 6.0.7.

INFO

Published Date :

2026-01-13T21:37:35.541Z

Last Modified :

2026-01-14T16:56:25.582Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-23478 vulnerability.

Vendors Products
Cal
  • Cal.com
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23478.

URL Resource
https://github.com/calcom/cal.com/security/advisories/GHSA-7hg4-x4pr-3hrg cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact