CVE-2026-33374
Unbounded memory allocation in the Prometheus rule conversion API
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-770 CWE-400 CWE-789 |
| Vendor | grafana |
| Product | grafana enterprise |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 13, 2026 |
| Last Updated | Oct 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Grafana / Grafana Enterprise
12.0.0 ≤ 12.3.11 12.4.0 < 12.4.13 13.0.0 < 13.0.11 13.1.0 < 13.1.8 13.2.0 < 13.2.4
Grafana / Grafana OSS
12.0.0 ≤ 12.3.11 12.4.0 < 12.4.13 13.0.0 < 13.0.11 13.1.0 < 13.1.8 13.2.0 < 13.2.4