Grafana up to 13.0.1 Grafana API Endpoint memory allocation

Summaryinfo

A vulnerability has been found in Grafana up to 11.6.14/12.2.8/12.3.6/12.4.3/13.0.1 and classified as problematic. This issue affects some unknown processing of the component Grafana API Endpoint. The manipulation leads to memory allocation. This vulnerability is listed as CVE-2026-33382. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Grafana up to 11.6.14/12.2.8/12.3.6/12.4.3/13.0.1. It has been rated as problematic. This issue affects an unknown part of the component Grafana API Endpoint. The manipulation with an unknown input leads to a memory allocation vulnerability. Using CWE to declare the problem leads to CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. Impacted is availability. The summary by CVE is:

Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service.

The advisory is shared at grafana.com. The identification of this vulnerability is CVE-2026-33382 since 03/19/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• Grafana

Version

• 11.6.0
• 11.6.1
• 11.6.2
• 11.6.3
• 11.6.4
• 11.6.5
• 11.6.6
• 11.6.7
• 11.6.8
• 11.6.9
• 11.6.10
• 11.6.11
• 11.6.12
• 11.6.13
• 11.6.14
• 12.2.0
• 12.2.1
• 12.2.2
• 12.2.3
• 12.2.4
• 12.2.5
• 12.2.6
• 12.2.7
• 12.2.8
• 12.3.0
• 12.3.1
• 12.3.2
• 12.3.3
• 12.3.4
• 12.3.5
• 12.3.6
• 12.4.0
• 12.4.1
• 12.4.2
• 12.4.3
• 13.0.0
• 13.0.1

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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