UpHeron
All vulnerabilities

Servers and applications

CVE-2025-47871

Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly validate channel membership when retrieving playbook run metadata, allowing authenticated users who are playbook members but not channel members to access sensitive information about linked private channels including channel name, display name, and participant count…

Severity
Medium 5.4
Published
30 Jun 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
9.11.16, 10.5.6, 10.6.6, 10.7.3
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • Version 10.8.0
  • Version 10.8.0-rc3
  • Version 10.8.0-rc2
  • Version 10.8.0-rc1
All 8 release lines
  • From 9.11.0 before 9.11.16
  • From 10.5.0 before 10.5.6
  • From 10.6.0 before 10.6.6
  • From 10.7.0 before 10.7.3
  • Version 10.8.0-rc1
  • Version 10.8.0-rc2
  • Version 10.8.0-rc3
  • Version 10.8.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-47871
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-47871