What is CVE-2024-42000?

CVE-2024-42000 is a low-severity vulnerability in Mattermost, classified under Incorrect Authorization. CVSS score: 2.7/10. Published 2024-11-09.

How severe is CVE-2024-42000?

Low severity. CVSS v3 base score is 2.7 out of 10.

Auth bypass in Mattermost

CVE-2024-42000

Mattermost versions 9.10.x <= 9.10.2, 9.11.x <= 9.11.1, 9.5.x <= 9.5.9 and 10.0.x <= 10.0.0 fail to properly authorize the requests to /api/v4/channels which allows a User or System Manager, with "Read Groups" permission but with no access for channels to retrieve details about private channels that they were not a member of by sending a request to /api/v4/channels.

Vulnerability class: Broken Access Control

EPSS: 0.003 (20.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.

Affected products

Mattermost — versions 9.10.0, 9.11.0, 9.5.0
Mattermost Mattermost_server — versions 10.0.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

responsibledisclosure@mattermost.com (Vendor Advisory)

Frequently asked questions

What is CVE-2024-42000?: CVE-2024-42000 is a low-severity vulnerability in Mattermost, classified under Incorrect Authorization. CVSS score: 2.7/10. Published 2024-11-09.
How severe is CVE-2024-42000?: Low severity. CVSS v3 base score is 2.7 out of 10.