CVE-2026-58587

Name of the Vulnerable Software and Affected Versions Drupal Canvas versions 0.0.0 through 1.4.2 Drupal Canvas versions 1.5.0 through 1.5.2 Drupal Canvas versions 1.6.0 through 1.6.1 Drupal Canvas versions 1.7.0 through 1.7.1

Description An issue exists in the Canvas AI submodule where image files uploaded via a custom API for use in the AI web chat are insufficiently validated before being saved to the temporary directory. This improper neutralization of input during web page generation can lead to Cross-Site Scripting (XSS), a condition where malicious scripts are injected into trusted websites.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.