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CVE-2025-49810
Good to know:

Date: August 21, 2025
Mattermost versions 10.5.x <= 10.5.8 fail to validate access controls at time of access which allows user to read a thread via AI posts
Severity Score
Severity Score
Weakness Type (CWE)
Incorrect Authorization
CWE-863Top Fix

Upgrade Version
Upgrade to version github.com/mattermost/mattermost - v10.5.9;github.com/mattermost/mattermost-server - v10.5.9;github.com/mattermost/mattermost/server/v8 - v8.0.0-20250721095846-c602a4a78e1f
CVSS v3.1
Base Score: |
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Attack Vector (AV): | NETWORK |
Attack Complexity (AC): | LOW |
Privileges Required (PR): | LOW |
User Interaction (UI): | REQUIRED |
Scope (S): | UNCHANGED |
Confidentiality (C): | LOW |
Integrity (I): | NONE |
Availability (A): | NONE |