Mattermost Server 10.11.x < 10.11.16 / 11.5.x < 11.5.5 / 11.6.x < 11.6.2 Multiple Vulnerabilities (MMSA-2026-00616 / MMSA-2026-00649 / MMSA-2026-00655 / MMSA-2026-00656 / MMSA-2026-00661 / MMSA-2026-00662 / MMSA-2026-00665)

Version 1.5

Sep 18, 2026, 2:17 PM

CVSS metrics ("CVSSv2 score" set to 8.3)
CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C")
CVSSv2 score source (changed from "CVE-2026-7387" to "CVE-2026-6739")
CVSSv3 score source (changed from "CVE-2026-6739" to none)