CVE-2026-21386 - CERT CVE
ID CVE-2026-21386
Sažetak Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to use consistent error responses when handling the /mute command which allows an authenticated team member to enumerate private channels they are not authorized to know about via differing error messages for nonexistent versus private channels. Mattermost Advisory ID: MMSA-2026-00588
Reference
CVSS
Base: 4.3
Impact: 1.4
Exploitability:2.8
Pristup
VektorSloženostAutentikacija
NETWORK LOW LOW
Impact
PovjerljivostCjelovitostDostupnost
LOW NONE NONE
CVSS vektor CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Zadnje važnije ažuriranje 18-03-2026 - 13:53
Objavljeno 16-03-2026 - 15:16