Grafana up to 12.4.1 Resample Query denial of service

Summaryinfo

A vulnerability was found in Grafana up to 11.6.13/12.1.9/12.2.7/12.3.5/12.4.1. It has been classified as problematic. This vulnerability affects unknown code of the component Resample Query Handler. The manipulation leads to denial of service. This vulnerability is traded as CVE-2026-27879. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Grafana up to 11.6.13/12.1.9/12.2.7/12.3.5/12.4.1 and classified as problematic. This issue affects an unknown code block of the component Resample Query Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

A resample query can be used to trigger out-of-memory crashes in Grafana.

It is possible to read the advisory at grafana.com. The identification of this vulnerability is CVE-2026-27879 since 02/24/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 304079 (Linux Distros Unpatched Vulnerability : CVE-2026-27879), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 11.6.14, 12.1.10, 12.2.8, 12.3.6 or 12.4.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (304079). Statistical analysis made it clear that VulDB provides the best quality for 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
• 12.1.0
• 12.1.1
• 12.1.2
• 12.1.3
• 12.1.4
• 12.1.5
• 12.1.6
• 12.1.7
• 12.1.8
• 12.1.9
• 12.2.0
• 12.2.1
• 12.2.2
• 12.2.3
• 12.2.4
• 12.2.5
• 12.2.6
• 12.2.7
• 12.3.0
• 12.3.1
• 12.3.2
• 12.3.3
• 12.3.4
• 12.3.5
• 12.4.0
• 12.4.1

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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