CVSS 6.1 · Medium EPSS 0,31%
Kerentanan Incorrect Implementation of Authentication Algorithm pada mattermost server. Skor CVSS 3.1 6.1 (Medium) menurut NVD.
Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to properly validate user identity in the OpenID {{IsSameUser()}} comparison logic, which allows an attacker to take over arbitrary user accounts via an overly permissive substring matching flaw in the user discovery flow.. Mattermost Advisory ID: MMSA-2026-00590
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| mattermost | mattermost server | Versi 10.11.0 hingga sebelum 10.11.12 |
| mattermost | mattermost server | Versi 11.2.0 hingga sebelum 11.2.4 |
| mattermost | mattermost server | Versi 11.3.0 hingga sebelum 11.3.2 |
| mattermost | mattermost server | Versi 11.4.0 hingga sebelum 11.4.1 |