SARA / Free Tools / CVE / CVE-2022-4044

CVE-2022-4044 — A denial-of-service vulnerability in Mattermost allows an authenticated user to

A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.

CVSS

4.3 MEDIUM

EPSS

0.51% (top 34.10%)

CWE

CWE-770

Published

2022-11-23T05:45:39.948Z

Last modified

2024-12-06T23:07:25.045Z

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

01What is this vulnerability?

A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.

Vendor	Product	Versions
Mattermost	Mattermost	1.0.0, 7.1.4, 7.2.0, 7.3.0, 7.4.0

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

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