What is CVE-2022-2401?

CVE-2022-2401 is a medium-severity vulnerability in Mattermost, classified under Information Disclosure. CVSS score: 6.5/10. Published 2022-07-14.

How severe is CVE-2022-2401?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Information disclosure in Mattermost

CVE-2022-2401

Unrestricted information disclosure of all users in Mattermost version 6.7.0 and earlier allows team members to access some sensitive information by directly accessing the APIs.

Vulnerability class: Information Disclosure

Published 2022-07-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000

Affected products

Mattermost — versions 6.7.x 6.7.0, 6.x, 6.5.x
Mattermost Server — versions 6.6.0, 6.6.1, 6.7.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

mattermost.com/security-updates/ (Vendor Advisory)

Frequently asked questions

What is CVE-2022-2401?: CVE-2022-2401 is a medium-severity vulnerability in Mattermost, classified under Information Disclosure. CVSS score: 6.5/10. Published 2022-07-14.
How severe is CVE-2022-2401?: Medium severity. CVSS v3 base score is 6.5 out of 10.