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6.5 Medium

CVE-2026-33374 The Prometheus rule conversion API endpoints in Grafana do not limit request body size, allowing authenticated users…

Description

The Prometheus rule conversion API endpoints in Grafana do not limit request body size, allowing authenticated users to trigger unbounded memory allocations that can crash the server through out-of-memory conditions.

Affected products and versions

Product Affected versions Fixed in
Grafana Enterprise 13.2 13.2.0 → < 13.2.4 13.2.4
Grafana Enterprise 13.1 13.1.0 → < 13.1.8 13.1.8
Grafana Enterprise 13.0 13.0.0 → < 13.0.11 13.0.11
Grafana Enterprise 12.4 12.4.0 → < 12.4.13 12.4.13
Grafana Enterprise 12.0 12.0.0 → 12.3.11 No fix stated
Grafana OSS 13.2 13.2.0 → < 13.2.4 13.2.4
Grafana OSS 13.1 13.1.0 → < 13.1.8 13.1.8
Grafana OSS 13.0 13.0.0 → < 13.0.11 13.0.11
Grafana OSS 12.4 12.4.0 → < 12.4.13 12.4.13
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Product Affected versions Fixed in
Grafana OSS 12.0 12.0.0 → 12.3.11 No fix stated

References

Timeline

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