Wednesday, Mar 6th, 2024
Advisory ID: 
Security risk: 
Less Critical
Denial of Service
Versions affected: 

Google Auth versions prior to 1.x-2.0.5.


Some issues were discovered in phpseclib 3.x before 3.0.36, which is included as part of the Google API PHP Client Library bundled with the Google Auth module. They make it possible for a denial of service attack.


Upgrade your site to the most recent version of Google Auth. Download available on the module page. No updates are necessary.

Reported By: 
  • Gthub Dependabot
Coordinated By: 

Security email list

Backdrop maintains a security mailing list. Whenever a security release comes out, an email will be sent to everyone subscribed to that list, announcing the new release. Please follow the steps below to join the Security email list.

  1. Log in to
  2. Edit your profile
  3. Switch to the "Subscriptions" tab
  4. Check the box labeled "Security updates"
  5. Save the form