UpHeron
All vulnerabilities

Servers and applications

CVE-2025-31947

Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to lockout LDAP users following repeated login failures, which allows attackers to lock external LDAP accounts through repeated login failures through Mattermost.

Severity
Medium 5.3
Published
15 May 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
9.11.12, 10.4.5, 10.5.3, 10.6.2
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • From 9.11.0 before 9.11.12
  • From 10.4.0 before 10.4.5
  • From 10.5.0 before 10.5.3
  • From 10.6.0 before 10.6.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-31947
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-31947