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CVE-2026-15815 (GCVE-0-2026-15815)

Vulnerability from cvelistv5 – Published: 2026-09-17 20:47 – Updated: 2026-09-18 14:31
VLAI
Title
CVE-2026-15815 CVE Record
Summary
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.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:26 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Grafana Grafana OSS Affected: 11.6.0 , ≤ 11.6.17 (semver)
Affected: 12.0.0 (semver)
Affected: 12.1.0 (semver)
Affected: 12.2.0 (semver)
Affected: 12.3.0 (semver)
Affected: 12.4.0 , ≤ 12.4.10 (semver)
Affected: 13.0.0 , ≤ 13.0.8 (semver)
Affected: 13.1.0 , ≤ 13.1.5 (semver)
Affected: 13.2.0 , ≤ 13.2.1 (semver)
guessed Create a notification for this product.
Grafana Grafana Enterprise Affected: 11.6.0 , ≤ 11.6.17 (semver)
Affected: 12.0.0 (semver)
Affected: 12.1.0 (semver)
Affected: 12.2.0 (semver)
Affected: 12.3.0 (semver)
Affected: 12.4.0 , ≤ 12.4.10 (semver)
Affected: 13.0.0 , ≤ 13.0.8 (semver)
Affected: 13.1.0 , ≤ 13.1.5 (semver)
Affected: 13.2.0 , ≤ 13.2.1 (semver)
guessed Create a notification for this product.
Date Public
2026-08-15 11:19
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.