CVE-2025-31363
April 16, 2025
Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.9 fail to restrict domains the LLM can request to contact upstream which allows an authenticated user to exfiltrate data from an arbitrary server accessible to the victim via performing a prompt injection in the AI plugin's Jira tool.
Affected Packages
github.com/mattermost/mattermost (GO):
Affected version(s) >=v9.11.0 <v9.11.10Fix Suggestion:
Update to version v9.11.10github.com/mattermost/mattermost (GO):
Affected version(s) >=v10.4.0 <v10.4.3Fix Suggestion:
Update to version v10.4.3github.com/mattermost/mattermost/server/v8 (GO):
Affected version(s) >=v8.0.0-20230429093631-aac4f2337933 <v8.0.0-20250218121836-2b5275d87136Fix Suggestion:
Update to version v8.0.0-20250218121836-2b5275d87136github.com/mattermost/mattermost (GO):
Affected version(s) =v10.5.0 <v10.5.1Fix Suggestion:
Update to version v10.5.1Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.16
