drupal/advanced_filesystem — security advisory

{
  "id": "dbaf543465c2e5b87b1b226f767013d23a61486cb68691ea4699c22605cc2726",
  "url": "https://osv.dev/vulnerability/DRUPAL-CONTRIB-2026-217",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DRUPAL-CONTRIB-2026-217",
    "summary": "Advanced File System turns Drupal's file storage into a manageable, observable and maintainable subsystem. The Advanced Filesystem: Backup submodule does not sufficiently validate certain requests. This may allow an attacker to trick an authenticated user into performing unintended actions through a Cross-Site Request Forgery (CSRF) vulnerability. The vulnerability is mitigated by the fact that `advanced_filesystem_backup` module must be enabled.",
    "evidence": "osv:DRUPAL-CONTRIB-2026-217",
    "products": [
      {
        "name": {
          "value": "drupal/advanced_filesystem",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.0.28",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "DRUPAL-CONTRIB-2026-217",
      "aliases": [
        "CVE-2026-107262",
        "DRUPAL-CONTRIB-2026-217"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.0.28"
                }
              ],
              "database_specific": {
                "constraint": "<1.0.28"
              }
            }
          ],
          "package": {
            "name": "drupal/advanced_filesystem",
            "purl": "pkg:composer/drupal/advanced_filesystem?repository_url=https:%2F%2Fpackages.drupal.org%2F8",
            "ecosystem": "Packagist:https://packages.drupal.org/8"
          },
          "database_specific": {
            "source": "https://github.com/DrupalSecurityTeam/drupal-advisory-database/blob/main/advisories/advanced_filesystem/DRUPAL-CONTRIB-2026-217.json",
            "affected_versions": "<1.0.28"
          }
        }
      ],
      "modified": "2026-10-07T20:15:05.735614565Z",
      "provider": "osv",
      "references": [
        "https://www.drupal.org/sa-contrib-2026-217"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-107262",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 97199,
  "published_at": "2026-10-07T16:58:12+00:00"
}