CVEvulnerability

CVE-2026-15815

8.8 HIGH Published 2026-09-17 Modified 2026-09-19 Official page ↗
Status
Awaiting Analysis
Published
2026-09-17
Last modified
2026-09-19
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-22, CWE-59, CWE-94

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.

Related

Weakness · CWE (3)

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness
  • CWE-59 Improper Link Resolution Before File Access weakness
  • CWE-94 Improper Control of Generation of Code weakness

References