CVE-2026-4643
âšī¸ lowSummary
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
CVSS Score
3.5
Low
EPSS Score
0.0
Exploit Probability
Published Date
2026-05-18
First Seen: 2026-05-19
đ Relative Risk Intelligence
This CVE is Lower Risk - more severe than 3.9% of all 321,566 vulnerabilities in our database.
#309,002
Below average severity
Severity Percentile
đ¯ CISA SSVC Assessment Updated: May 18, 2026
đ Exploitation Status
None
No known exploits
âī¸ Automatable
NO
Requires human interaction
đĨ Technical Impact
Partial
Limited system impact
đ Discovered By
Devin Binnie
SSVC data provided by
CISA
Last Modified
2026-05-18
Source
NVD đ
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
CWE IDs (Weakness Types)