Excessive resource consumption due to lack to request path size limits
Priority LOW 30CWE-400Published · 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
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
Summary
Mattermost versions 8.1.x <= 8.1.10, 9.6.x <= 9.6.0, 9.5.x <= 9.5.2 and 8.1.x <= 8.1.11 fail to limit the size of a request path that includes user inputs which allows an attacker to cause excessive resource consumption, possibly leading to a DoS via sending large request paths
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00537 45th percentileScored 2026-11-07
Fix Partial Mattermost (Mattermost): 9.7.0, 8.1.11, 9.6.1 +2github.com/mattermost/mattermost-server (Go): 8.1.12, 9.5.3, 9.6.1Red Hat: 2 without a fix
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 | Mattermost | 8.1.0 – 8.1.10; 9.6.0; 9.5.0 – 9.5.2; 8.1.0 – 8.1.11 | 9.7.0, 8.1.11, 9.6.1, 9.5.3, 8.1.12 | Patch available | CNA |
| — | github.com/mattermost/mattermost-server (Go) | 8.1.0 to before 8.1.12 | 8.1.12 | Patch available | GHSA-p2wq-4ggp-45f3 |
| — | github.com/mattermost/mattermost-server (Go) | 9.5.0 to before 9.5.3 | 9.5.3 | Patch available | GHSA-p2wq-4ggp-45f3 |
| — | github.com/mattermost/mattermost-server (Go) | 9.6.0-rc1 to before 9.6.1 | 9.6.1 | Patch available | GHSA-p2wq-4ggp-45f3 |
- Mattermost VendorMattermost Affected 8.1.0 – 8.1.10; 9.6.0; 9.5.0 – 9.5.2; 8.1.0 – 8.1.11 Fixed in 9.7.0, 8.1.11, 9.6.1, 9.5.3, 8.1.12 Patch available CNA
- github.com/mattermost/mattermost-server (Go) Vendor— Affected 8.1.0 to before 8.1.12 Fixed in 8.1.12 Patch available GHSA-p2wq-4ggp-45f3
- github.com/mattermost/mattermost-server (Go) Vendor— Affected 9.5.0 to before 9.5.3 Fixed in 9.5.3 Patch available GHSA-p2wq-4ggp-45f3
- github.com/mattermost/mattermost-server (Go) Vendor— Affected 9.6.0-rc1 to before 9.6.1 Fixed in 9.6.1 Patch available GHSA-p2wq-4ggp-45f3
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | 8.1.0 to before 8.1.12; 9.5.0 to before 9.5.3; 9.6.0 to before 9.6.1 | Vulnerable | Mattermost |
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* Versions 8.1.0 to before 8.1.12; 9.5.0 to before 9.5.3; 9.6.0 to before 9.6.1 Vulnerable ·Mattermost
Remediation
- Fix · CNA Mattermost (Mattermost) Fixed in 9.7.0, 8.1.11, 9.6.1, 9.5.3, 8.1.12
- Fix · GHSA-p2wq-4ggp-45f3 github.com/mattermost/mattermost-server (Go) Fixed in 8.1.12 Advisory →
- Fix · GHSA-p2wq-4ggp-45f3 github.com/mattermost/mattermost-server (Go) Fixed in 9.5.3 Advisory →
- Fix · GHSA-p2wq-4ggp-45f3 github.com/mattermost/mattermost-server (Go) Fixed in 9.6.1 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet: Fix deferred |
| Red Hat Advanced Cluster Security 3 | Affected | No fix yet: Fix deferred |
Not affected: 1 product
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2024-22091
- 2026-10-03 Alias added: GHSA-p2wq-4ggp-45f3
References
Other 5
- https://github.com/mattermost/mattermost/commit/13049d8b16b195f98246dff4812b5f64c1e5a627
- https://github.com/mattermost/mattermost/commit/49e7c477246e31c7a0bd85c1043599121755b260
- https://github.com/mattermost/mattermost/commit/54478f2ccbc6c4f110706966adfe0db2c16a566c
- https://github.com/mattermost/mattermost/commit/f6d320017549ec66efb5fdd4bc10b66ab36abb70
- https://github.com/mattermost/mattermost
More Mattermost Server vulnerabilities
- TI-2025-18933 Arbitrary file read in Mattermost Boards via import & export board archive CVSS 3.1CRITICAL 9.9
- TI-2025-04465 Path Traversal Leading to RCE by Any Authenticated Mattermost User CVSS 3.1CRITICAL 9.9
- TI-2017-14068 An issue was discovered in Mattermost Server before 3.6.2. CVSS 3.1CRITICAL 9.8
- TI-2017-14060 An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. CVSS 3.1CRITICAL 9.8
- TI-2017-14048 An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. CVSS 3.1CRITICAL 9.8
- TI-2025-14360 Arbitrary file read via block duplication in Mattermost Boards CVSS 3.1CRITICAL 9.9
Sources
- CVE-2024-22091 · CVE Program
- CVE-2024-22091 · NVD
- FIRST EPSS
- GHSA-p2wq-4ggp-45f3 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-22091 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences