A chained attack via SQL Expressions and a Grafana Enterprise plugin can lead to a remote arbitrary code execution impact (RCE). This is enabled by a feature in Grafana (OSS), so all users are always recommended to update to avoid future attack vectors going this path. Only instances with the sqlExpressions feature toggle enabled are vulnerable. Only instances in the following version ranges are affected: - 11.6.0 (inclusive) to 11.6.14 (exclusive): 11.6.14 has the fix. 11.5 and below are not affected. - 12.0.0 (inclusive) to 12.1.10 (exclusive): 12.1.10 has the fix. 12.0 did not receive an update, as it is end-of-life. - 12.2.0 (inclusive) to 12.2.8 (exclusive): 12.2.8 has the fix. - 12.3.0 (inclusive) to 12.3.6 (exclusive): 12.3.6 has the fix. - 12.4.0 (inclusive) to 12.4.2 (exclusive): 12.4.2 has the fix. 13.0.0 and above also have the fix: no v13 release is affected.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the f45ad940-58ff-11f1-b525-3c7c3fba4204 advisory.

    https://grafana.com/security/security-advisories/cve-2026-27876 reports:
    A chained attack via SQL Expressions and a Grafana Enterprise plugin               can lead to a remote arbitrary code execution impact (RCE).  This               is enabled by a feature in Grafana (OSS), so all users are always               recommended to update to avoid future attack vectors going this               path.

              Only instances with the sqlExpressions feature toggle enabled are               vulnerable.

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to its self-reported version, the Grafana install hosted on the remote host is prior to 11.6.14, or 12.1.x prior to 12.1.10, or 12.2.x prior to 12.2.8, or 12.3.x prior to 12.3.6, or 12.4.x prior to 12.4.2. It is, therefore, affected by multiple vulnerabilities.

- Grafana's SQL expressions feature enables transforming query data with familiar SQL syntax. A vulnerability in this feature allows arbitrary file write enabling remote code execution.

- Grafana's OpenFeature feature flag validation endpoints do not require authentication and accept unbounded user input, leading to an unauthenticated denial-of-service.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A chained attack via SQL Expressions and a Grafana Enterprise plugin can lead to a remote arbitrary code     execution impact (RCE). This is enabled by a feature in Grafana (OSS), so all users are always recommended     to update to avoid future attack vectors going this path. Only instances with the sqlExpressions feature     toggle enabled are vulnerable. Only instances in the following version ranges are affected: - 11.6.0     (inclusive) to 11.6.14 (exclusive): 11.6.14 has the fix. 11.5 and below are not affected. - 12.0.0     (inclusive) to 12.1.10 (exclusive): 12.1.10 has the fix. 12.0 did not receive an update, as it is end-of-     life. - 12.2.0 (inclusive) to 12.2.8 (exclusive): 12.2.8 has the fix. - 12.3.0 (inclusive) to 12.3.6     (exclusive): 12.3.6 has the fix. - 12.4.0 (inclusive) to 12.4.2 (exclusive): 12.4.2 has the fix. 13.0.0     and above also have the fix: no v13 release is affected. (CVE-2026-27876)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
317068	FreeBSD : Grafana -- RCE on Grafana via sqlExpressions (f45ad940-58ff-11f1-b525-3c7c3fba4204)	Nessus	FreeBSD Local Security Checks	critical
115181	Grafana 12.4.x < 12.4.2 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	critical
115180	Grafana 12.3.x < 12.3.6 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	critical
115179	Grafana 12.2.x < 12.2.8 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	critical
115178	Grafana 12.1.x < 12.1.10 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	critical
115177	Grafana < 11.6.14 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	critical
304338	Linux Distros Unpatched Vulnerability : CVE-2026-27876	Nessus	Misc.	critical

Detections

Analytics

CVE-2026-27876

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Tenable Plugins

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