What is CVE-2026-1553?

CVE-2026-1553 is a medium-severity vulnerability in Drupal Canvas, classified under Incorrect Authorization. CVSS score: 4.8/10. Published 2026-02-04.

How severe is CVE-2026-1553?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Auth bypass in Drupal Canvas

CVE-2026-1553

Incorrect Authorization vulnerability in Drupal Drupal Canvas allows Forceful Browsing.This issue affects Drupal Canvas: from 0.0.0 before 1.0.4.

Vulnerability class: Broken Access Control

Published 2026-02-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (3.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

Drupal Canvas — versions 0.0.0
Drupal Canvas Project

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

www.drupal.org/sa-contrib-2026-006 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-1553?: CVE-2026-1553 is a medium-severity vulnerability in Drupal Canvas, classified under Incorrect Authorization. CVSS score: 4.8/10. Published 2026-02-04.
How severe is CVE-2026-1553?: Medium severity. CVSS v3 base score is 4.8 out of 10.