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 |
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