Mattermost fails to deduplicate input IDs allowing a simple user to cause the application to consume excessive resources and possibly crash by sending a specially crafted request to /api/v4/users/ids with multiple identical IDs.

Related CVEs

CVE-2023-5333

Key Information

GHSA ID

GHSA-w28r-7qw2-ghqc

Published

October 9, 2023 12:30 PM

Last Modified

April 4, 2024 8:26 AM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: August 2, 2025 6:46 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.