CVE-2026-1046
7.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:L
Summary
Mattermost Desktop App versions <=6.0 6.2.0 5.2.13.0 fail to validate help links which allows a malicious Mattermost server to execute arbitrary executables on a user’s system via the user clicking on certain items in the Help menu Mattermost Advisory ID: MMSA-2026-00577
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mattermost | Mattermost | 0 <= 6.2.0 | affected |
| Mattermost | Mattermost | 0 <= 5.2.13 | affected |
| Mattermost | Mattermost | 6.1.0 | unaffected |
| Mattermost | Mattermost | 6.0.3.0 | unaffected |
| Mattermost | Mattermost | 5.13.3.0 | unaffected |
Weaknesses
- CWE-939: CWE-939: Improper Authorization in Handler for Custom URL Scheme
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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