CVE-2010-3686: The OpenID module in Drupal 6.x before 6.18, and the OpenID module 5.x before 5.x-1.4 for Drupal, violates...

Security readout for executives and security teams

This is an authentication-bypass flaw in Drupal’s OpenID login support. An attacker could use a valid-looking OpenID assertion whose important fields were not properly signed, potentially gaining access without the intended authentication checks. The bundle identifies old Drupal 5 and 6 OpenID deployments as the affected area. Exposure is most likely on legacy Drupal 6 sites before 6.18, or Drupal 5 sites using OpenID module 5.x before 5.x-1.4. Risk depends on whether OpenID authentication is enabled and reachable on public or partner-facing sites. Prioritize any internet-facing legacy Drupal site that still uses OpenID. The technical issue enables authentication bypass, but urgency depends on whether these obsolete versions remain in production. If no Drupal 5 or 6 OpenID use exists, business exposure is likely minimal. Mitigation focus: Upgrade Drupal 6 installations to at least 6.18 where applicable.; Upgrade Drupal OpenID 5.x module to at least 5.x-1.4 where applicable.; Disable OpenID authentication until vendor-confirmed remediation is complete..

Prepared

Jun 28, 2026, 01:40 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.