CVE-2026-4643
3.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Summary
Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server or plugin to crash the desktop client via invoking {{window.close()}} in the renderer context, leading to a denial of service condition at the client level. Mattermost Advisory ID: MMSA-2026-00633
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mattermost | Mattermost | 0 <= 6.0.1 | affected |
| Mattermost | Mattermost | 0 <= 5.4.13 | affected |
| Mattermost | Mattermost | 6.2.0 | unaffected |
| Mattermost | Mattermost | 6.1.1.0 | unaffected |
| Mattermost | Mattermost | 5.13.5.0 | unaffected |
Weaknesses
- CWE-754: CWE-754: Improper Check for Unusual or Exceptional Conditions
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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