PT-2026-57663 · Mattermost · Mattermost
Alimursaliyev
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Published
2026-07-13
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Updated
2026-07-13
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CVE-2026-9597
CVSS v3.1
5.4
Medium
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
Mattermost versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4 fail to verify whether a guest account is deactivated before creating a session in the magic-link token login path, which allows a deactivated guest user to obtain a fully functional session via a magic-link token issued prior to deactivation.. Mattermost Advisory ID: MMSA-2026-00681
Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Mattermost