CVE-2026-81168 CAPTCHA Protected Page - Moderately critical - Cookie Forgery - SA-CONTRIB-2026-105

Low 3.7 Published Updated

Attackers can bypass CAPTCHA protection via cookie forgery, allowing unauthorized access to protected pages in Drupal sites.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-81168?

CVE-2026-81168 is a low-severity authentication bypass vulnerability in Drupal CAPTCHA Protected Page, published on 2 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal CAPTCHA Protected Page allows Functionality Bypass. This issue affects CAPTCHA Protected Page versions: from 0.0.0 to 1.0.2.

Weakness: CWE-288

Which versions are affected by CVE-2026-81168?

It affects 1 product.

Linux distribution packages (1)
drupal/captcha_protected_page Packagist:https://packages.drupal.org/8All versions1.0.2

Products include Captcha Protected Page Project Captcha Protected Page.

How do I fix CVE-2026-81168?

Upgrade to a fixed version.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-81168 being exploited?

There is no known exploitation of CVE-2026-81168 in the wild and no public exploit code.

Sources

Also known as DRUPAL-CONTRIB-2026-105, GHSA-cxh2-vw8f-xmvf.

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