Vulnerability from drupal
Published
2026-08-26 17:38
Modified
2026-08-26 17:38
Summary
Details

The Digital Signage Framework module provides a route that signage devices can call to refresh dynamic blocks on a display.

The route did not check whether the requester was a signage device, nor whether the requested block was one that the module delivers to displays. As a result, an anonymous visitor could read the rendered content of blocks they were not meant to see.

This vulnerability is mitigated by the fact that many block plugins perform their own access checks on the content they display, which limits what can be disclosed through this route.

Credits
Marcus Johansson (marcus_johansson) www.drupal.org/u/marcus_johansson
References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "affected_versions": "\u003c2.6.1"
      },
      "package": {
        "ecosystem": "Packagist:https://packages.drupal.org/8",
        "name": "drupal/digital_signage_framework"
      },
      "ranges": [
        {
          "database_specific": {
            "constraint": "\u003c2.6.1"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.6.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "severity": []
    }
  ],
  "aliases": [
    "CVE-2026-81166"
  ],
  "credits": [
    {
      "contact": [
        "https://www.drupal.org/u/marcus_johansson"
      ],
      "name": "Marcus Johansson (marcus_johansson)"
    }
  ],
  "details": "The Digital Signage Framework module provides a route that signage devices can call to refresh dynamic blocks on a display.\n\nThe route did not check whether the requester was a signage device, nor whether the requested block was one that the module delivers to displays. As a result, an anonymous visitor could read the rendered content of blocks they were not meant to see.\n\nThis vulnerability is mitigated by the fact that many block plugins perform their own access checks on the content they display, which limits what can be disclosed through this route.",
  "id": "DRUPAL-CONTRIB-2026-109",
  "modified": "2026-08-26T17:38:08.000Z",
  "published": "2026-08-26T17:38:08.000Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.drupal.org/sa-contrib-2026-109"
    }
  ],
  "schema_version": "1.7.0"
}



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Sightings

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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.