Security Advisory

CVE-2026-23478

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-01-13 21:37:35

Last updated 2026-01-14 16:56:25

Assigner GitHub_M

State PUBLISHED

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 users account by supplying a target email address via session.update(). This vulnerability is fixed in 6.0.7.

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