Improper Neutralization of Special Elements Used in a Template Engine in YouTrack - CVE-2026-33392
Published: May 5, 2026
Vulnerability identifier: #VU129685
CSH Severity: Low
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-33392
CWE-ID: CWE-1336
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to improper neutralization of special elements in notification templates in the notification template sandbox when processing notification templates. A remote privileged user can craft a malicious notification template to execute arbitrary code.
Affected software
YouTrack
How to mitigate CVE-2026-33392
Install security update from vendor's website.
YouTrack - update to 2025.3.131383