CVE-2026-93846

low

Description

Mattermost versions 11.7.x <= 11.7.10 fail to restrict which built-in roles can be assigned to a team member via the API, which allows a team admin to grant a team member permissions beyond those permitted by the configured permission scheme via the {{update-team-member-roles}} REST API.. Mattermost Advisory ID: MMSA-2026-00734

References

https://mattermost.com/security-updates

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-109968

Details

Source: Mitre, NVD

Published: 2026-10-26

Updated: 2026-11-02

Risk Information

CVSS v2

Base Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:M/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 3.8

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

Severity: Low

EPSS

EPSS: 0.00152