Intel

AIKIDO-2026-724533

drupal/tca is vulnerable to Access Bypass

Access BypassCVE-2026-18259 Published Jul 30, 2026

50

Medium Risk

This Affects:

PHPdrupal/tca
0.0.1 - 3.1.1
Fixed in 3.1.2
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TL;DR

The Token Content Access module is vulnerable to an authentication bypass due to a timing side-channel in access token comparison. In certain cases, access tokens are not compared using a constant-time operation, allowing an attacker to infer valid token values by measuring response time differences. A successful attack could enable unauthorized access to content protected by the module. Exploitation requires the attacker to know or discover the URL of protected content and perform a sufficient number of timing measurements to recover a valid access token.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

drupal/tca is vulnerable to Access Bypass in versions 0.0.1 - 3.1.1.

How to fix this

Upgrade the drupal/tca library to the patch version.

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