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CVE-2026-6689

🗓️ 12 Jun 2026 15:51:30Reported by MattermostType 
cve
 cve
🔗 web.nvd.nist.gov👁 16 Views🌐 WEB

Missing permission check on team creation lets users with create-team rights enable open invite and allowed domains.

Related
Detection
Affected
Refs
Paths
NVD
Node
mattermostmattermost_serverRange10.11.010.11.17
OR
mattermostmattermost_serverRange11.5.011.5.5
OR
mattermostmattermost_serverRange11.6.011.6.2
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "11.6.1",
        "status": "affected",
        "version": "11.6.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.5.4",
        "status": "affected",
        "version": "11.5.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "10.11.15",
        "status": "affected",
        "version": "10.11.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "10.11.16",
        "status": "affected",
        "version": "10.11.0",
        "versionType": "semver"
      },
      {
        "version": "11.7.0",
        "status": "unaffected"
      },
      {
        "version": "11.6.2",
        "status": "unaffected"
      },
      {
        "version": "11.5.5",
        "status": "unaffected"
      },
      {
        "version": "10.11.16",
        "status": "unaffected"
      },
      {
        "version": "10.11.17",
        "status": "unaffected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
allow_open_inviterequest body/api/v4/teamsAuthenticated user with PermissionCreateTeam can configure invite-controlled settings on a new team during creation, bypassing permission checks when using POST /api/v4/teams (open invite and/or allowed domains) due to missing enforcement of PermissionInviteUser during team creation.CWE-862
allowed_domainsrequest body/api/v4/teamsAuthenticated user with PermissionCreateTeam can configure invite-controlled settings on a new team during creation, bypassing permission checks when using POST /api/v4/teams (open invite and/or allowed domains) due to missing enforcement of PermissionInviteUser during team creation.CWE-862

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18 Jun 2026 14:34Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.14.3
EPSS0.00152
SSVC
16