CVE-2022-4044
Authenticated user could send multiple requests containing a large Auto Responder Message payload and can crash a Mattermost server
A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Authenticated user could send multiple requests containing a large Auto Responder Message payload and can crash a Mattermost server
A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.
- Record
CVE-2022-4044- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-770
- Updated
- 2026-11-02
EUVDEUVD-2022-7242
A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.
- Record
EUVD-2022-7242- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5jph-wrq7-v9hf
Denial of service in Mattermost
A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.
- Record
GHSA-5jph-wrq7-v9hf- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-02
NVD
A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.
- Record
CVE-2022-4044- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-02
OSV
Authenticated user could send multiple requests containing a large Auto Responder Message payload and can crash a Mattermost server
A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.
- Record
CVE-2022-4044- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-770
- Updated
- 2026-11-02
OSVGHSA-5jph-wrq7-v9hf
Denial of service in Mattermost
A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.
- Record
GHSA-5jph-wrq7-v9hf- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/mattermost/mattermost-serverGo |
before 7.1.4 | 7.1.4 |
github.com/mattermost/mattermost-serverGo |
7.2.0 up to 7.2.1 | 7.2.1 |
github.com/mattermost/mattermost-serverGo |
7.3.0 up to 7.3.1 | 7.3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-4044 is a medium vulnerability (CVSS 4.3) in Mattermost, published November 23, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.14%, the 66th percentile. Fixed in github.com/mattermost/mattermost-server 7.1.4.