CWE
201 497
Advisory Published
Updated

GHSA-9h6j-4ffx-cm84

First published: Wed 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 SoftwareAffected VersionHow to fix
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

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Frequently Asked Questions

  • What is the severity of GHSA-9h6j-4ffx-cm84?

    GHSA-9h6j-4ffx-cm84 is classified as a medium severity vulnerability.

  • How do I fix GHSA-9h6j-4ffx-cm84?

    To remediate GHSA-9h6j-4ffx-cm84, update to Mattermost versions 9.11.10, 10.4.3, or 10.5.1.

  • What types of Mattermost versions are affected by GHSA-9h6j-4ffx-cm84?

    Mattermost versions 10.4.x up to 10.4.2, 10.5.x up to 10.5.0, and 9.11.x up to 9.11.9 are affected by GHSA-9h6j-4ffx-cm84.

  • Can an unauthenticated user exploit GHSA-9h6j-4ffx-cm84?

    No, GHSA-9h6j-4ffx-cm84 requires an authenticated user to exploit the vulnerability.

  • What impact does GHSA-9h6j-4ffx-cm84 have on Mattermost?

    GHSA-9h6j-4ffx-cm84 allows an authenticated user to exfiltrate data from an arbitrary server accessible via prompt injection.

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