Description
Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to restrict certain operations on system admins to only other system admins, which allows delegated granular administration users with the "Edit Other Users" permission to perform unauthorized modifications to system administrators via improper permission validation.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mattermost | Mattermost | 10.5.0 – ≤ 10.5.1, 10.4.0 – ≤ 10.4.3, 9.11.0 – ≤ 9.11.9 | 10.6.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | govulncheck-vulndb | 0.0.20250422T181640-1.1 | openSUSE-SU-2025:15017-1 |
Affected packages
Advisories 2
- openSUSE-SU-2025:15017-1 govulncheck-vulndb-0.0.20250422T181640-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-0579 Mattermost Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 22, 2025