Bug 2477269 (CVE-2026-33378) - CVE-2026-33378 grafana: Grafana: Denial of Service due to Out of Memory via $__timeGroup macro
Summary: CVE-2026-33378 grafana: Grafana: Denial of Service due to Out of Memory via $...
Keywords:
Status: NEW
Alias: CVE-2026-33378
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-13 20:03 UTC by OSIDB Bzimport
Modified: 2026-09-18 13:41 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-05-13 20:03:41 UTC 
Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.
Note You need to log in before you can comment on or make changes to this bug.