CVE-2026-3113

CWE-732 — Incorrect Permission Assignment5 documents5 sources
Severity
5.5MEDIUM
EPSS
0.0%
top 99.01%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Github.com Mattermost/mattermost-serverMattermost Mattermost ServerMattermost Mattermost
Timeline
PublishedMar 26

Description

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

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:NExploitability: 1.3 | Impact: 3.6

Affected Packages3 packages

▶NVDmattermost/mattermost_server10.11.0 — 10.11.12+3
▶Gogithub.com/mattermost/mattermost-server11.4.0-rc1 — 11.4.1+4
▶CVEListV5mattermost/mattermost11.4.0 — 11.4.0+3

🔴Vulnerability Details

3
GHSA
Mattermost doesn't set permissions on downloaded bulk export↗2026-03-26
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OSV
Mattermost doesn't set permissions on downloaded bulk export↗2026-03-26
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CVEList
mmctl export download command doesn’t restrict permissions to created file to file owner↗2026-03-26
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🕵️Threat Intelligence

1
Wiz
CVE-2026-3113 Impact, Exploitability, and Mitigation Steps | Wiz↗
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