CVE-2026-118582

Name of the Vulnerable Software and Affected Versions Drupal CAPTCHA versions 0.0.0 through 1.18.0 Drupal CAPTCHA versions 2.0.0 through 2.0.11

Description An authentication bypass issue exists where the module fails to fully invalidate a solved CAPTCHA session. This allows a protected form that has been submitted once to be submitted again without solving a new challenge. This flaw weakens protection against automated submissions, including login brute-forcing, comment spam, and spam registrations.

Recommendations Update Drupal CAPTCHA versions 0.0.0 through 1.18.0 to a version newer than 1.18.0. Update Drupal CAPTCHA versions 2.0.0 through 2.0.11 to a version newer than 2.0.11.