Incorrect authorization in YouTrack - CVE-2026-123324
Published: November 6, 2026
Vulnerability identifier: #VU159677
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-123324
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information from shared mailbox message history.
The vulnerability exists due to incorrect authorization in YouTrack's shared mailbox message history feature when accessing message history. A remote user can access message history without appropriate authorization to disclose sensitive information.
Affected software
YouTrack
How to mitigate CVE-2026-123324
Install security update from vendor's website.
YouTrack - update to 2026.2.19562