CVE-2026-15815

CVE-2026-15815 CVE Record

State: Published
Severity: 8.8 High
Published: Sep 17, 2026
Updated: Sep 19, 2026
Reserved: Jul 15, 2026

Description

Grafana OSS and Grafana Enterprise did not safely resolve symbolic links when extracting plugin archives. A crafted plugin archive can chain relative symbolic link entries to escape the plugin installation directory, writing arbitrary files and an executable backend binary outside that directory. The dropped executable runs with the privileges of the Grafana server process, resulting in remote code execution.

Plugin archives are extracted before their signature is verified, so a valid plugin signature does not prevent the write. An operator can therefore be affected by installing a plugin that appears legitimate, as well as by installing a plugin from an arbitrary archive using grafana-cli, the GF_INSTALL_PLUGINS environment variable, or preinstall configuration.

Grafana Enterprise is affected because it includes the same plugin extraction code as Grafana OSS.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	GRAFANA

Weaknesses

Affected Products

Product	Versions
Grafana OSSGrafana	11.6.0 through 11.6.17Affected 12.0.0Affected 12.1.0Affected 12.2.0Affected 12.3.0Affected 12.4.0 through 12.4.10Affected 13.0.0 through 13.0.8Affected 13.1.0 through 13.1.5Affected 13.2.0 through 13.2.1Affected
Grafana EnterpriseGrafana	11.6.0 through 11.6.17Affected 12.0.0Affected 12.1.0Affected 12.2.0Affected 12.3.0Affected 12.4.0 through 12.4.10Affected 13.0.0 through 13.0.8Affected 13.1.0 through 13.1.5Affected 13.2.0 through 13.2.1Affected

References

https://grafana.com/security/security-advisories/cve-2026-15815vendor-advisory

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