CVE-2026-13426
Client4 fails to validate path parameters
- State
- Published
- Severity
- 5.4 Medium
- Published
- Jun 26, 2026
- Updated
- Jun 26, 2026
- Reserved
- Jun 26, 2026
Description
The Mattermost Go module github.com/mattermost/mattermost/server/public versions < v0.1.22 fail to validate path parameters when constructing API route paths which allows an attacker to redirect API calls to unintended endpoints via crafted IDs containing path traversal components. Mattermost Advisory ID: MMSA-2025-00532
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | Mattermost |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
github.com/mattermost/mattermost/server/publicMattermost |
|
References
- MMSA-2025-00532vendor-advisory
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