Search/CVE-2026-1046
● CVE — High

CVE-2026-1046

VendormattermostProductmattermost desktopDiscoveredFeb 16, 2026UpdatedMar 23, 2026

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

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CVSS v3.1
7.6 HIGH
EPSS
0.26%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 22, 2026
▲ 0.02pp
0.24% → 0.26% over 4 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionREQUIRED
ScopeCHANGED
ConfidentialityHIGH
IntegrityNONE
AvailabilityLOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:L
Connections
2 relationships
Timeline
disclosure → media coverage
Feb 16, 2026
Disclosure — published as a CVE record. · last revised by NVD Mar 23, 2026