https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-05T06:49:14.754278+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-10103 CVE-2026-10103 — Authenticated remote cluster can modify or delete posts it does not own in Mattermost Connected Workspaces shared chann… 2026-10-05T06:49:14.779367+00:00

Affected: Mattermost

Mattermost versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4, 10.11.x <= 10.11.19 fail to verify post ownership in the shared channel inbound sync handler, which allows an authenticated remote cluster to modify or delete posts authored by local users or other remotes via crafted sync messages referencing arbitrary post IDs in channels shared with that remote.. Mattermost Advisory ID: MMSA-2026-00689