UpHeron
All vulnerabilities

Servers and applications

CVE-2025-31363

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.

Severity
Medium 6.5
Published
16 Apr 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
9.11.10, 10.4.3
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • From 9.11.0 before 9.11.10
  • From 10.4.0 before 10.4.3
  • Version 10.5.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-31363
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-31363