High severity · published Sep 17, 2026
CVE-2026-15815
CVE-2026-15815 CVE Record
8.8
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
Grafana · Grafana
11.6.0 through 11.6.17; 12.0.0; 12.1.0; 12.2.0; 12.3.0; 12.4.0 through 12.4.10; +3 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-15815
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-15815
grafana.com
https://grafana.com/security/security-advisories/cve-2026-15815
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