CVE-2026-107257

Medium

Description

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.

SeverityMedium
CVSS6.5
Exploit probability—
ProductDrupal/actstream
PublishedOct 7, 2026
First seenOct 7, 2026

How to fix

Update
  • drupal/actstream2.0.1, 2.1.1 or later

Affected products

ProductAffected versionsFixed in
drupal/actstreamPackagist:https://packages.drupal.org/8v < 2.0.1, 2.1.0 ≤ v < 2.1.12.0.1, 2.1.1

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