Allocation of Resources Without Limits or Throttling in YouTrack - CVE-2026-100274
Published: October 2, 2026
Vulnerability identifier: #VU153151
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-100274
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to allocation of resources without limits in notification templates when processing a notification template. A remote privileged user can trigger processing of a notification template to cause a denial of service.
Affected software
YouTrack
How to mitigate CVE-2026-100274
Install security update from vendor's website.
YouTrack - update to 2026.2.19197