CVE-2025-31363: Data exfiltration via AI plugin Jira tool

Published Apr 16, 2025
·
Updated

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 Software

8 affected componentsFixes available
Mattermost Mattermost<=10.4.2, <=10.5.0, <=9.11.9
go/github.com/mattermost/mattermost/server/v8<8.0.0-20250218121836-2b5275d87136
8.0.0-20250218121836-2b5275d87136
go/github.com/mattermost/mattermost/server/v8>=9.11.0<9.11.10
9.11.10
go/github.com/mattermost/mattermost/server/v8>=10.4.0<10.4.3
10.4.3
go/github.com/mattermost/mattermost/server/v8>=10.5.0<10.5.1
10.5.1
Mattermost Mattermost Server>=9.11.0<9.11.10
Mattermost Mattermost Server>=10.4.0<10.4.3
Mattermost Mattermost Server=10.5.0

Remediation

Information

Update Mattermost to versions 10.6.0, 10.4.3, 10.5.1, 9.11.10 or higher.

Event History

Apr 16, 2025
CVE Published
via MITRE·09:14 AM
Data Sourced
via MITRE·09:14 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·10:15 AM
DescriptionSeverity
Data Sourced
via NVD·10:15 AM
Affected Software
Advisory Published
via GitHub·12:31 PM
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Frequently Asked Questions

1

What is the severity of CVE-2025-31363?

CVE-2025-31363 has been rated as a critical vulnerability due to its potential to allow data exfiltration.

2

How do I fix CVE-2025-31363?

To fix CVE-2025-31363, upgrade to Mattermost versions 10.5.1 or later, or 9.11.10 or later.

3

Who is affected by CVE-2025-31363?

CVE-2025-31363 affects Mattermost versions 10.4.2, 10.5.0, and 9.11.9.

4

What action should I take if I can't update to a safe version for CVE-2025-31363?

If unable to update, consider implementing stricter access controls and monitoring user activities until a patch can be applied.

5

What type of attack is associated with CVE-2025-31363?

CVE-2025-31363 is associated with prompt injection attacks that can lead to unauthorized data access.

Company

Resources

Contact

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