GitHub Advisoryadvisory · Go

GHSA-jwhw-xf5v-qgxc Mattermost allows guest users to view information about public teams they are not members of

LOW Published 2025-06-11 Modified 2025-06-11 Official page ↗
Aliases
CVE-2025-4128
Ecosystem
Go
Packages
github.com/mattermost/mattermost/server/v8, github.com/mattermost/mattermost-server
Severity
Low
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-863
Reviewed
2025-06-11

Affected packages

• Go github.com/mattermost/mattermost/server/v8: < 8.0.0-20250422131222-701ddc896a10 → fixed in 8.0.0-20250422131222-701ddc896a10 • Go github.com/mattermost/mattermost-server: >= 10.5.0, < 10.5.5 → fixed in 10.5.5 • Go github.com/mattermost/mattermost-server: >= 9.11.0, < 9.11.14 → fixed in 9.11.14

Description

Mattermost versions 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly restrict API access to team information, allowing guest users to bypass permissions and view information about public teams they are not members of via a direct API call to /api/v4/teams/{team_id}.

Related

Alias · CVE (1)

  • CVE-2025-4128 Mattermost versions 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly restrict API access to team information, allowing guest users to… vulnerability

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References