https://db.gcve.eu/rss/recent/all/10 Most recent entries from all 2026-09-29T22:24:10.310097+00:00 Vulnerability-Lookup info@gcve.eu python-feedgen Contains only the most 10 recent entries. https://db.gcve.eu/vuln/cve-2026-10542 CVE-2026-10542 — Playbooks channel action update validation issue 2026-09-29T22:24:10.312034+00:00

Affected: Mattermost

Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to validate channel action ownership which allows channel managers to update actions in other channels via the channel action update endpoint.. Mattermost Advisory ID: MMSA-2026-00692