Drupal core - Moderately critical - Information disclosure - SA-CORE-2026-010

{
  "id": "2aaac99405b9bfb1870df182d399a21bc221820c75ef38963380475e924eec65",
  "url": "https://www.drupal.org/sa-core-2026-010",
  "method": "llm",
  "payload": {
    "kind": "patch",
    "title": "Drupal core - Moderately critical - Information disclosure - SA-CORE-2026-010",
    "summary": "Drupal core hardening addresses insufficient access checks for image style derivatives served through non-private file streams. The issue requires a contributed file scheme for private derived images.",
    "evidence": "The module doesn't sufficiently check access to image style derivatives when those files are served via a file stream other than private://.",
    "products": [
      {
        "name": {
          "value": "Drupal core",
          "evidence": "Project: Drupal core"
        },
        "prerequisites": [
          {
            "value": "Drupal must be configured to use a contributed (non-core) file scheme to serve private derived images.",
            "evidence": "This vulnerability is mitigated by the fact that Drupal must be configured to use a contributed (non-core) file scheme to serve private derived images."
          }
        ],
        "fixed_versions": [
          {
            "value": "Drupal 11.4.4",
            "evidence": "If you use Drupal 11.4.x, update to Drupal 11.4.4."
          },
          {
            "value": "Drupal 11.3.14",
            "evidence": "If you use Drupal 11.3.x, update to Drupal 11.3.14."
          },
          {
            "value": "Drupal 10.6.13",
            "evidence": "If you use Drupal 10.6.x, update to Drupal 10.6.13."
          }
        ],
        "affected_versions": [
          {
            "value": "<10.6.13 || >=11.3.0 <11.3.14 || >=11.4.0 <11.4.4 || 11.0.* || 11.1.* || 11.2.*",
            "evidence": "Affected versions: <10.6.13 || >=11.3.0 <11.3.14 || >=11.4.0 <11.4.4 || 11.0.* || 11.1.* || 11.2.*"
          }
        ]
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-15916",
        "evidence": "CVE IDs: CVE-2026-15916"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-drupal-security",
  "document_id": 23459,
  "published_at": "2026-07-15T19:50:24+00:00"
}