alpine-cve-2026-15815

CVSS 8.8 osv_alpine
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.

Timeline
Published
unknown
Last Modified
unknown
CVSS Details

CVSS details not available.

Affected Products

No product information available.

References
Linked Vulnerabilities

No linked vulnerabilities found.

{
  "affected": [
    {
      "database_specific": {
        "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-15815.json"
      },
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "Alpine:v3.24",
        "name": "grafana",
        "purl": "pkg:apk/alpine/grafana?arch=source"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "12.4.14-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "Grafana OSS and Grafana Enterprise did not safely resolve symbolic links when\nextracting plugin archives. A crafted plugin archive can chain relative symbolic link\nentries to escape the plugin installation directory, writing arbitrary files and an\nexecutable backend binary outside that directory. The dropped executable runs with the\nprivileges of the Grafana server process, resulting in remote code execution.\n\nPlugin archives are extracted before their signature is verified, so a valid plugin\nsignature does not prevent the write. An operator can therefore be affected by\ninstalling a plugin that appears legitimate, as well as by installing a plugin from an\narbitrary archive using grafana-cli, the GF_INSTALL_PLUGINS environment variable, or\npreinstall configuration.\n\nGrafana Enterprise is affected because it includes the same plugin extraction code as\nGrafana OSS.",
  "id": "ALPINE-CVE-2026-15815",
  "modified": "2026-11-04T22:30:02.824714919Z",
  "published": "2026-09-17T21:17:11.210Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security.alpinelinux.org/vuln/CVE-2026-15815"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-15815"
  ]
}
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