CVE-2025-3611
mediumpriority · track · 17OT risk · elevatedEPSS 0.002 · 14 %ileDEEUUSEPSS · scored 2026-10-27
Mattermost versions 10.7.x <= 10.7.0, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly enforce access control restrictions for System Manager roles, allowing authenticated users with System Manager privileges to view team details they should not have access to via direct API requests to team endpoints, even when explicitly configured with 'No access' to Teams in the System Console.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.1–4.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (26)
Products and version ranges known to be affected.
- mattermost mattermost server10.5.0 → 10.5.4nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
- mattermost mattermost server9.11.0 → 9.11.13nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
- Go github.com/mattermost/mattermost-server10.0.0-rc1+incompatible → 10.5.4+incompatibleosvUSpkg:golang/github.com/mattermost/mattermost-server
- Go github.com/mattermost/mattermost-server10.6.0-rc1+incompatible → 10.7.1+incompatibleosvUSpkg:golang/github.com/mattermost/mattermost-server
- Go github.com/mattermost/mattermost-server9.0.0-rc1+incompatible → 9.11.13+incompatibleosvUSpkg:golang/github.com/mattermost/mattermost-server
advisories (3)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-0905Mattermost: Mehrere SchwachstellenDeutsch2025-04-29csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Mattermost ausnutzen, um Sicherheitsmechanismen zu umgehen und Informationen offenzulegen.
- GHSA-86jg-35xj-3vv5Mattermost fails to properly enforce access control restrictions for System Manager roles2025-05-30ghsa · osvUS
Mattermost versions 10.7.x <= 10.7.0, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly enforce access control restrictions for System Manager roles, allowing authenticated users with System Manager privileges to view team details they should not have access to via direct API requests to team endpoints, even when explicitly configured with 'No access' to Teams in the System Console.
- GO-2025-3728Mattermost fails to properly enforce access control restrictions for System Manager roles in github.com/mattermost/mattermost-server2025-06-03vendor · osvUS
Mattermost fails to properly enforce access control restrictions for System Manager roles in github.com/mattermost/mattermost-server
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-3611cnnvd
- https://mattermost.com/download/Patchcnnvd
- https://mattermost.com/security-updatescnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2025-3611cnnvd
- https://mattermost.com/security-updatesenisa_euvd
- https://mattermost.com/security-updatesVendor Advisorynvd
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