CVE-2026-33374
Fixed in a distro release EPSS <1%CVSS 6.5
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.
Products: Grafana Enterprise, Grafana OSS
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | grafana-12.1 | no fix |
| Chainguard | grafana-12.2 | no fix |
| Chainguard | grafana-12.3 | no fix |
| Chainguard | grafana-fips-12.1 | no fix |
| Chainguard | grafana-fips-12.2 | no fix |
| Chainguard | percona-grafana | no fix |
| Red Hat hummingbird 1 | grafana12.4 | 0:12.4.12-0.5.hum1 |
| Red Hat hummingbird 1 | grafana13.2 | 0:13.2.4-0.1.hum1 |
| Ubuntu 16.04 LTS | grafana | no fix |
| Wolfi | grafana-12.3 | no fix |