https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-05T05:16:54.970299+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-16048 CVE-2026-16048 — Channel member roles accept out-of-scope roles 2026-10-05T05:16:55.290883+00:00

Affected: Mattermost

Mattermost versions 11.8.x <= 11.8.2, 11.7.x <= 11.7.6, 10.11.x <= 10.11.21 fail to restrict channel member role assignment to channel-scoped roles which allows a channel administrator to gain additional channel permissions via the channel member roles API.. Mattermost Advisory ID: MMSA-2026-00697