CVE-2026-6343
4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to check public/private permissions which allows members without these permissions to access public playbooks via /get.. Mattermost Advisory ID: MMSA-2026-00591
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mattermost | Mattermost | 11.5.0 <= 11.5.1 | affected |
| Mattermost | Mattermost | 10.11.0 <= 10.11.13 | affected |
| Mattermost | Mattermost | 11.4.0 <= 11.4.3 | affected |
| Mattermost | Mattermost | 11.6.0 | unaffected |
| Mattermost | Mattermost | 11.5.2 | unaffected |
| Mattermost | Mattermost | 10.11.14 | unaffected |
| Mattermost | Mattermost | 11.4.4 | unaffected |
Weaknesses
- CWE-863: CWE-863: Incorrect Authorization
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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