CVE-2026-75025

EUVD-2026-80939
Mattermost Desktop App versions <=6.2 6.2.2.0 Fixed an issue where Mattermost Desktop did not sufficiently restrict server-rendered content from accessing local or private network resources. Thanks to game0v3r for contributing to this improvement under the Mattermost responsible disclosure policy. Mattermost Advisory ID: MMSA-2026-00698
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
MattermostCNA
4.7 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 4.64%
Affected Products (NVD)
VendorProductVersion
mattermostmattermost_desktop
6.2.0 ≤
𝑥
< 6.2.3
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
mattermostmattermost
𝑥
≤ 6.2.2
CNA
Common Weakness Enumeration
References
https://mattermost.com/security-updates