PT-2026-5242 · Drupal · Drupal/Canvas

Alex Bronstein + 5 · CVE-2026-1553 · Published 2026-01-28 · Updated 2026-02-04

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Drupal Canvas versions prior to 1.0.4

Description The Drupal Canvas module has an authorization issue that allows forceful browsing of Canvas Pages when they are unpublished. The module does not adequately validate access to Canvas Pages, potentially allowing unauthorized access. This is mitigated by the fact that content moderation is not enabled by default and archiving is not a feature of the module.

Recommendations Update to Drupal Canvas version 1.0.4 or later.

Exploit

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2026-1553

DRUPAL-CONTRIB-2026-006

Affected Products

Drupal/Canvas

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1553.json · Exploit
• https://osv.dev/vulnerability/CVE-2026-1553 · Vendor Advisory
• https://drupal.org/sa-contrib-2026-006 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-1553 · Security Note
• https://osv.dev/vulnerability/DRUPAL-CONTRIB-2026-006 · Vendor Advisory
• https://git.drupalcode.org/project/canvas · Note
• https://twitter.com/CVEnew/status/2019182771533701135 · Twitter Post
• https://t.me/CVEtracker/43763 · Telegram Post
• https://drupal.org/project/canvas · Note
• https://t.me/cveNotify/150921 · Telegram Post