CVE-2026-2463

published 2026-03-16

CVE-2026-2463: Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to filter invite IDs based on user permissions, which allows regular users to…

Priority P4 23 medium 4.3 CVSS 3.1

AV N AC L PR L UI N S U C L I N A N

Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to filter invite IDs based on user permissions, which allows regular users to bypass access control restrictions and register unauthorized accounts via leaked invite IDs during team creation.. Mattermost Advisory ID: MMSA-2025-00565

Affected

14 ranges

Vendor	Product	Version range	Fixed in
github.com	mattermost_mattermost-server	>= 0 < 5.3.2-0.20260105134819-cc427af41b2a	5.3.2-0.20260105134819-cc427af41b2a
github.com	mattermost_mattermost-server	>= 10.11.0-rc1 < 10.11.11	10.11.11
github.com	mattermost_mattermost-server	>= 10.11.0-rc1+incompatible < 10.11.11+incompatible	10.11.11+incompatible
github.com	mattermost_mattermost-server	>= 11.2.0-rc1 < 11.2.3	11.2.3
github.com	mattermost_mattermost-server	>= 11.2.0-rc1+incompatible < 11.2.3+incompatible	11.2.3+incompatible
github.com	mattermost_mattermost-server	>= 11.3.0-rc1 < 11.3.1	11.3.1
github.com	mattermost_mattermost-server	>= 11.3.0-rc1+incompatible < 11.3.1+incompatible	11.3.1+incompatible
github.com	mattermost_mattermost_server_v8	>= 0 < 8.0.0-20260105134819-cc427af41b2a	8.0.0-20260105134819-cc427af41b2a
mattermost	mattermost	10.11.0 – 10.11.10	—
mattermost	mattermost	11.2.0 – 11.2.2	—
mattermost	mattermost	11.3.0 – 11.3.0	—
mattermost	mattermost_server	>= 10.11.0 < 10.11.11	10.11.11
mattermost	mattermost_server	>= 11.2.0 < 11.2.3	11.2.3
mattermost	mattermost_server	>= 11.3.0 < 11.3.1	11.3.1

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CWE-862