Authenticated user could send multiple requests containing a large Auto Responder Message payload and can crash a Mattermost server
Published Nov 23, 2022
6.5
MEDIUMCVSS 3.1
EPSS 1.12%
Description
A denial-of-service vulnerability in Mattermost allows an authenticated user to crash the server via multiple large autoresponder messages.
Affected products
-
- Version 1.0.0StatusaffectedConstraints<=7.1.3
- Version 7.2.0StatusaffectedConstraints<7.2.1
- Version 7.3.0StatusaffectedConstraints<7.3.1
- Version 7.1.4StatusunaffectedConstraints<=7.1.*
- Version 7.4.0StatusunaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mattermost | Mattermost | unaffected |
|
- < 7.4
No data.
No Red Hat product state for this CVE.
github.com/mattermost/mattermost-server
Go
Introduced 0 Fixed 7.1.4github.com/mattermost/mattermost-server
Go
Introduced 7.2.0 Fixed 7.2.1github.com/mattermost/mattermost-server
Go
Introduced 7.3.0 Fixed 7.3.1
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 0 | 7.1.4 |
| Go | github.com/mattermost/mattermost-server | 7.2.0 | 7.2.1 |
| Go | github.com/mattermost/mattermost-server | 7.3.0 | 7.3.1 |
Remediation
Vendor solution
Update Mattermost to version v7.1.4, 7.2.1, 7.3.1, 7.4.0 or higher.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Dec 6, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.12% (0.01121) | 65.03th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.07% (0.01069) | 60.33th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.56% (0.00558) | 66.24th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00079) | 35.86th | v3 (v2023.03.01) |
| Jun 15, 2024 | 0.08% (0.00079) | 34.10th | v3 (v2023.03.01) |
| Nov 30, 2023 | 0.07% (0.00070) | 29.23th | v3 (v2023.03.01) |
| Oct 24, 2023 | 0.05% (0.00051) | 17.85th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 11.12th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Nov 23, 2022 | 0.89% (0.00885) | 26.95th | v2 (v2022.01.01) |
References (4)
- https://github.com/advisories/GHSA-5jph-wrq7-v9hf Advisory
- https://hackerone.com/reports/1680241 ExploitThird Party Advisory
- https://mattermost.com/security-updates/ Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-4044
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-5jph-wrq7-v9hf | Advisory | |
| https://hackerone.com/reports/1680241 | ExploitThird Party Advisory | |
| https://mattermost.com/security-updates/ | Vendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2022-4044 |
Change history (0)
No recorded changes yet.