Incorrect defaults can cause attackers to bypass rate limitations
Priority LOW 26CWE-276Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Incorrect default configuration for trusted IP header in Mattermost version 6.7.0 and earlier allows attacker to bypass some of the rate limitations in place or use manipulated IPs for audit logging via manipulating the request headers.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00643 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 | 6.7.x 6.7.0; 6.x – 6.3.8; 6.5.x – 6.5.1; 6.6.x – 6.6.1 | — | No fix listed | CNA |
- Mattermost VendorMattermost Affected 6.7.x 6.7.0; 6.x – 6.3.8; 6.5.x – 6.5.1; 6.6.x – 6.6.1 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | before 6.3.9; 6.4.0 to before 6.5.2; 6.6.0 to before 6.6.2 | Vulnerable | Mattermost |
| cpe:2.3:a:mattermost:mattermost_server:6.7.0:*:*:*:*:*:*:* | 6.7.0 | Vulnerable | Mattermost |
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* Versions before 6.3.9; 6.4.0 to before 6.5.2; 6.6.0 to before 6.6.2 Vulnerable ·Mattermost
- cpe:2.3:a:mattermost:mattermost_server:6.7.0:*:*:*:*:*:*:* Versions 6.7.0 Vulnerable ·Mattermost
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-2366
- 2026-10-03 Alias added: GHSA-8xxp-2g7w-ph6m
- 2026-10-21 EPSS moved to the 50th–90th percentile
References
Advisory 1
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-2022-2366 · CVE Program
- CVE-2022-2366 · NVD
- FIRST EPSS
- GHSA-8xxp-2g7w-ph6m · 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