CVE-2026-2476
March 16, 2026
Mattermost Plugins versions <=2.0.3.0 fail to properly mask sensitive configuration values which allows an attacker with access to support packets to obtain original plugin settings via exported configuration data. Mattermost Advisory ID: MMSA-2026-00606
Affected Packages
github.com/mattermost/mattermost-plugin-msteams (GO):
Affected version(s) >=v0.0.1 <v2.3.1Fix Suggestion:
Update to version v2.3.1github.com/mattermost/mattermost-plugin-msteams (GO):
Affected version(s) >=v0.0.1 <v1.15.1-0.20260102165339-036c761bd3cbFix Suggestion:
Update to version v1.15.1-0.20260102165339-036c761bd3cbRelated Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Exposure of Sensitive Information to an Unauthorized Actor
EPSS
Base Score:
0.03
