April 18th, 2015
On April 15th, a change to a Drupal.org website permission inadvertently allowed a small segment of users to view a report listing the email addresses of recently logged in users. No passwords were involved. The problem was mitigated within 13 hours of being introduced and within 3 hours of being reported. The problem was completely resolved within 24 hours of introduction. The number of affected email addresses is relatively small – fewer than 500. Those users are being contacted directly if their email was affected. Users with maintainer access or the community role and above were not affected by this incident.
The users with permission to see this report were limited to community members that have shown frequent contribution to Drupal.org. The possible exposure time was also limited to between April 15, 2015 20:53 UTC to April 16, 2015 9:00 UTC. There were approximately 44 IP addresses that accessed the information during that time. These users are mostly administrators of Drupal.org and the community members who first reported the incident.
Even though the exposure of email addresses was limited as described above, we recommend all users to be cautious of any email that asks you for personal information.
We want to thank the community members who moved quickly to alert the Drupal Security and Drupal.org infrastructure teams about the problem.