CVE-2026-4273
Low · 3.7CVSS
3.7
EPSS
0.1%
Published
May 18, 2026
CISA due date
—
The record
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to validate that the RefreshedToken differs from the original invite token during remote cluster invite confirmation which allows an authenticated attacker to bypass token rotation and reuse the original invite token via sending a crafted invite confirmation with a RefreshedToken matching the original token. Mattermost Advisory ID: MMSA-2026-00575
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-96398 Incorrect Authorization vulnerability in Drupal Webform allows Forceful Browsing. CWE-863
- CVE-2026-96384 Incorrect Authorization vulnerability in Drupal Mermaid Diagram Field allows Forceful… CWE-863
- CVE-2026-96370 Incorrect Authorization vulnerability in Drupal Webform allows Server Side Request… CWE-863
- CVE-2026-96373 Incorrect Authorization vulnerability in Drupal Webform allows Forceful Browsing. CWE-863
- CVE-2026-96366 Incorrect Authorization vulnerability in Drupal Webform allows Forceful Browsing. CWE-863
- CVE-2026-96356 Incorrect Authorization vulnerability in Drupal Webform allows Forceful Browsing. CWE-863
- CVE-2026-84917 Incorrect Authorization vulnerability in Drupal Jsonapi Role Access allows Forceful… CWE-863
- CVE-2026-84920 Incorrect Authorization vulnerability in Drupal Unpublished Node Permissions allows… CWE-863