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CVE-2026-33378

Grafana Data Source Plugin: DoS (OOM) via Negative Interval Injection in $__timeGroup Macro PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Grafana / Grafana OSSaffected 8.0.0 through 11.6.14; affected 11.6.14 before 11.6.14+security-04; affected 12.0.0 through 12.2.8; affected 12.2.8 before 12.2.8+security-04; affected 12.3.0 through 12.3.6; affected 12.3.6 before 12.3.6+security-04; affected 12.4.0 through 12.4.3; affected 12.4.3 before 12.4.3+security-02; affected 13.0.0 through 13.0.1; affected 13.0.1 before 13.0.1+security-01

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.