CVE-2026-3113

EUVD-2026-16240
Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to set permissions on downloaded bulk export which allows other local users on the server to be able to read contents of the bulk export.. Mattermost Advisory ID: MMSA-2026-00593
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
MattermostCNA
5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
mattermostmattermost
𝑥
≤ 11.4.0
mattermostmattermost
11.3.0 ≤
𝑥
≤ 11.3.1
mattermostmattermost
11.2.0 ≤
𝑥
≤ 11.2.3
mattermostmattermost
10.11.0 ≤
𝑥
≤ 10.11.11
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://mattermost.com/security-updates