CVE-2025-11776

MediumCVSS 4.3/10Last modified Oct 19, 2026

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

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-863

Affected software

No affected versions have been published.

Timeline

Published
Nov 14, 2025
Last modified
Oct 19, 2026
NVD status
Analyzed

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CVE-2025-11776: Medium severity, CVSS 4.3 | Vulnix