PT-2026-42746 · Mattermost · Mattermost
Runup
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Published
2026-05-22
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Updated
2026-05-22
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CVE-2026-3636
CVSS v3.1
4.3
Medium
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to sanitize team member data when returned via API to users without elevated permissions which allows a user without permissions to get data about team members roles via invoking various team API endpoints.. Mattermost Advisory ID: MMSA-2026-00626
Fix
Information Disclosure
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Weakness Enumeration
Related Identifiers
Affected Products
Mattermost