https://db.gcve.eu/rss/recent/all/10 Most recent entries from all 2026-09-28T12:24:44.926713+00:00 Vulnerability-Lookup info@gcve.eu python-feedgen Contains only the most 10 recent entries. https://db.gcve.eu/vuln/cve-2026-75588 CVE-2026-75588 — Mattermost Desktop App plugin popout scheme validation bypass 2026-09-28T12:24:44.941433+00:00

Affected: Mattermost

Mattermost Desktop App versions <=6.2 6.2.2.0 fail to validate the URL scheme when checking whether a target URL is internal to the connected server, which allows a network-positioned attacker to load a plugin popout window over an insecure connection via a link using a downgraded URL scheme. Mattermost Advisory ID: MMSA-2026-00717