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 remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20940-1 advisory.

    Changes in grafana:

    - CVE-2026-39821: Fix validation bypass and privilege escalation by       updating golang.org/x/net to version 0.55.0 (bsc#1266600)

    - Update to version 11.6.14+security-04:
      Security:
      * CVE-2026-28374: Fix insecure direct object reference in         Annotations API (bsc#1265290)
      * CVE-2026-28376: Fix unbounded memory allocation in Grafana Live         push endpoint (bsc#1265289)
      * CVE-2026-28383: Fix unbounded memory allocation in Grafana         plugin resources (bsc#1265286)
      * CVE-2026-28380: Fix broken access control in Snapshot API         (bsc#1265287)
      * CVE-2026-33376: Fix Auth Proxy IPv6 whitelist bypass         (bsc#1265285)
      * CVE-2026-28379: Fix viewer-triggered race condition in         Grafana Live (bsc#1265288)
      * CVE-2026-33377: Fix dashboard Editor Privilege Escalation         (bsc#1265284)
      * CVE-2026-33378: Fix OOM exception in Grafana Data Source Plugin         (bsc#1265283)
      * CVE-2026-33381: Prevent users from generating Service Account         tokens after permissions removal (bsc#1265281)
      * CVE-2026-33380: Fix vulnerability in SQL Expressions allowing         an authenticated attacker to read arbitrary files from the         Grafana servers filesystem (bsc#1265282)

    - CVE-2026-34986: Fix panic in JWE decryption (bsc#1262950)
    - CVE-2026-41602: Fix Integer Overflow or Wraparound vulnerability       in Apache Thrift (bsc#1263501)

    - CVE-2026-26958: Bump filippo.io/edwards25519 to version 1.1.1       (bsc#1258595)
    - CVE-2026-21725: Fix missing UID when deleting datasource by name       (bsc#1258873)

    - Update to version 11.6.14+security-01:
      Security:
      * CVE-2026-33375: Fix denial of Service via out-of-memory         exhaustion in MSSQL data source plugin (bsc#1260881)

    - Update to version 11.6.14:
      Security:
      * CVE-2026-27876: Fix remote arbitrary code execution via chained         SQL Expressions (bsc#1261025)
      * CVE-2026-27877: Fix information disclosure of data-source         passwords via public dashboards (bsc#1261026)
      * CVE-2026-28375: Fix denial of service via testdata data-source         (bsc#1261029)
      * CVE-2026-27879: Fix denial of service via resample query         (bsc#1261027)
      * CVE-2026-33186: Fix authorization bypass due to improper         validation of the HTTP/2 :path pseudo-header (bsc#1260263)
      * CVE-2026-21724: Fix authorization bypass allows modification of         protected webhook URLs (bsc#1260878)

    - Update to version 11.6.13:
      Enhancement:
      * Wire the public dashboard service to the HTTP server

    - Update to version 11.6.12:
      Enhancement:
      * Update authentication redirect logic       Bug fix:
      * Fix single panel render with variable references

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

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

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
321072	openSUSE 16 Security Update : grafana (openSUSE-SU-2026:20940-1)	Nessus	SuSE Local Security Checks	medium
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

critical

Tenable Plugins

medium

critical

critical

critical

critical

critical

critical

critical