Summaryinfo

A vulnerability identified as critical has been detected in CAPTCHA up to 1.16.x/2.0.9 on Drupal. This issue affects some unknown processing. The manipulation leads to authentication bypass. This vulnerability is traded as CVE-2026-3214. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in CAPTCHA up to 1.16.x/2.0.9 on Drupal. It has been rated as critical. This issue affects some unknown functionality. The manipulation with an unknown input leads to a authentication bypass vulnerability. Using CWE to declare the problem leads to CWE-288. A product requires authentication, but the product has an alternate path or channel that does not require authentication. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal CAPTCHA allows Functionality Bypass.This issue affects CAPTCHA: from 0.0.0 before 1.17.0, from 2.0.0 before 2.0.10.

The weakness was shared by Andrew Wang as sa-contrib-2026-015. It is possible to read the advisory at drupal.org. The identification of this vulnerability is CVE-2026-3214 since 02/25/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.17.0 or 2.0.10 eliminates this vulnerability.

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Productinfo

Name

• CAPTCHA

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 2.0.0
• 2.0.1
• 2.0.2
• 2.0.3
• 2.0.4
• 2.0.5
• 2.0.6
• 2.0.7
• 2.0.8
• 2.0.9

CPE 2.3info

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CPE 2.2info

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