drupal/actstream — security advisory

{
  "id": "5e480e0371794288d9e1801aaba59addf3a1b9251f3e1db48969fabdda19d0af",
  "url": "https://osv.dev/vulnerability/DRUPAL-CONTRIB-2026-198",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DRUPAL-CONTRIB-2026-198",
    "summary": "Actstream (short for Activity Stream) aggregates a user's activity from external services (RSS feeds, etc.) into per-user activity stream entities. The configuration route does not sufficiently check that the user editing it is the account owner (or a user administrator) leading to an access bypass vulnerability.",
    "evidence": "osv:DRUPAL-CONTRIB-2026-198",
    "products": [
      {
        "name": {
          "value": "drupal/actstream",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.0.1",
            "evidence": "/affected/0/ranges"
          },
          {
            "value": "2.1.1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "DRUPAL-CONTRIB-2026-198",
      "aliases": [
        "CVE-2026-107257",
        "DRUPAL-CONTRIB-2026-198"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.0.1"
                }
              ],
              "database_specific": {
                "constraint": "<2.0.1"
              }
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.1.0"
                },
                {
                  "fixed": "2.1.1"
                }
              ],
              "database_specific": {
                "constraint": ">=2.1.0 <2.1.1"
              }
            }
          ],
          "package": {
            "name": "drupal/actstream",
            "purl": "pkg:composer/drupal/actstream?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/actstream/DRUPAL-CONTRIB-2026-198.json",
            "affected_versions": "<2.0.1 || >=2.1.0 <2.1.1"
          }
        }
      ],
      "modified": "2026-10-07T20:15:05.836105109Z",
      "provider": "osv",
      "references": [
        "https://www.drupal.org/sa-contrib-2026-198"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-107257",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 97202,
  "published_at": "2026-10-07T16:22:05+00:00"
}