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Vulnerability from drupal
Published
2026-09-09 17:17
Modified
2026-09-09 17:17
Summary
Details

This module enables you to add key-based authentication on a per-user
basis.

The module doesn't cache per user, potentially allowing an attacker to view another user's authentication keys, if the attacker has the same permissions.

This vulnerability is mitigated by the fact that the site must have the dynamic_page_cache module enabled.


{
  "affected": [
    {
      "database_specific": {
        "affected_versions": "\u003c2.2.4"
      },
      "package": {
        "ecosystem": "Packagist:https://packages.drupal.org/8",
        "name": "drupal/key_auth"
      },
      "ranges": [
        {
          "database_specific": {
            "constraint": "\u003c2.2.4"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "severity": []
    }
  ],
  "aliases": [
    "CVE-2026-87940"
  ],
  "credits": [
    {
      "contact": [
        "https://www.drupal.org/u/sisyphus_ut"
      ],
      "name": "Utkarsh Choudhary (sisyphus_ut)"
    }
  ],
  "details": "This module enables you to add key-based authentication on a per-user  \nbasis.\n\nThe module doesn\u0027t cache per user, potentially allowing an attacker to view another user\u0027s authentication keys, if the attacker has the same permissions.\n\nThis vulnerability is mitigated by the fact that the site must have the `dynamic_page_cache` module enabled.",
  "id": "DRUPAL-CONTRIB-2026-138",
  "modified": "2026-09-09T17:17:50.000Z",
  "published": "2026-09-09T17:17:50.000Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.drupal.org/sa-contrib-2026-138"
    }
  ],
  "schema_version": "1.7.0"
}



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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

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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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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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.


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