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VulnerabilityPublished Updated

CVE-2026-15815: Grafana OSS · Link Following

Affects Grafana OSSSource CVE Database V5

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Not known to be exploited · CVSS 8.8 High.

Data as of 1 Nov 2026, 22:58 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 52% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
GrafanaGrafana OSSAffected
  • 12.0.0 – 12.3.0
  • >=11.6.0 <=11.6.17
  • >=12.4.0 <=12.4.10
  • >=13.0.0 <=13.0.8
  • >=13.1.0 <=13.1.5
  • >=13.2.0 <=13.2.1
4 affected builds
Fixed in–
GrafanaGrafana EnterpriseAffected
  • 12.0.0 – 12.3.0
  • >=11.6.0 <=11.6.17
  • >=12.4.0 <=12.4.10
  • >=13.0.0 <=13.0.8
  • >=13.1.0 <=13.1.5
  • >=13.2.0 <=13.2.1
4 affected builds
Fixed in–

AI-suggested

Operators should avoid installing plugins from untrusted sources and be cautious with plugin installation methods until an official fix is released. Since plugin archives are extracted before signature verification, relying solely on plugin signatures is insufficient to prevent exploitation.

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.

References

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