Upstream information

CVE-2025-11776 at MITRE

Description

Mattermost versions <11 fail to properly restrict access to archived channel search API which allows guest users to discover archived public channels via the `/api/v4/teams/{team_id}/channels/search_archived` endpoint

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (Mattermost)
Base Score 4.3
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
CVSSv3 Version 3.1
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

SUSE Timeline for this CVE

CVE page created: Thu Jul 30 14:23:59 2026
CVE page last modified: Thu Jul 30 14:23:59 2026