Resource allocation without limits in Mattermost Playbooks Plugin
Priority LOW 30CWE-770Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-770.
Summary
A denial-of-service vulnerability in the Mattermost Playbooks plugin allows an authenticated user to crash the server via multiple large requests to one of the Playbooks API endpoints.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00789 56th percentileScored 2026-11-07
Fix Fixed Playbooks Plugin (Mattermost): 7.1.4, 7.2.1, 7.3.1 +1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Mattermost | Playbooks Plugin | 1.0.0 – 7.1.3; 7.2.0 to before 7.2.1; 7.3.0 to before 7.3.1 | 7.1.4, 7.2.1, 7.3.1, 7.4.0 | Patch available | CNA |
- Playbooks Plugin VendorMattermost Affected 1.0.0 – 7.1.3; 7.2.0 to before 7.2.1; 7.3.0 to before 7.3.1 Fixed in 7.1.4, 7.2.1, 7.3.1, 7.4.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mattermost:mattermost:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Mattermost |
- cpe:2.3:a:mattermost:mattermost:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Mattermost
Remediation
- Fix · CNA Playbooks Plugin (Mattermost) Fixed in 7.1.4, 7.2.1, 7.3.1, 7.4.0
Timeline
- 2026-10-02 Threatist record created from CVE-2022-4019
- 2026-10-03 Alias added: GHSA-hqqj-g6mv-rw46
References
More Mattermost vulnerabilities
- TI-2024-26695 Malicious remote can invite itself to an arbitrary local channel CVSS 3.1CRITICAL 9.6
- TI-2023-02056 Oauth authorization codes do not expire when deauthorizing an oauth2 app CVSS 3.1CRITICAL 9.1
- TI-2019-15069 An issue was discovered in Mattermost Mobile Apps before 1.26.0. CVSS 3.1CRITICAL 9.1
- TI-2024-26233 Malicious remote can add users to arbitrary teams and channels CVSS 3.1HIGH 8.7
- TI-2024-26746 Permanently local data deletion by malicious remote CVSS 3.1HIGH 8.7
- TI-2023-06508 Injection in Mattermost CVSS 3.1HIGH 8.8
Sources
- CVE-2022-4019 · CVE Program
- CVE-2022-4019 · NVD
- FIRST EPSS
- GHSA-hqqj-g6mv-rw46 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences