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CVE-2026-33378

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CVE-2026-33378

Published: May 13, 2026

Modified: May 14, 2026

PUBLISHED

CVSS v3.1

6.5

MEDIUM

Description

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.

VendorProductVersions

Grafana

Grafana OSS

affected
8.0.0 - <= 11.6.14
affected
11.6.14 - < 11.6.14+security-04
affected
12.0.0 - <= 12.2.8
affected
12.2.8 - < 12.2.8+security-04
affected
12.3.0 - <= 12.3.6

+5 more versions

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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