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CVE-2026-6343

🗓️ 18 May 2026 08:32:28Reported by MattermostType 
cve
 cve
🔗 web.nvd.nist.gov👁 77 Views🌐 WEB

CVE-2026-6343: Playbooks plugin fails to enforce view permissions, exposing public playbooks.

Related
Detection
Affected
Refs
Paths
NVD
Vulners
Node
OR
mattermostmattermost_serverRange10.11.0–10.11.14
mattermostmattermost_serverRange11.4.0–11.4.4
mattermostmattermost_serverRange11.5.0–11.5.2
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "11.5.1",
        "status": "affected",
        "version": "11.5.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "10.11.13",
        "status": "affected",
        "version": "10.11.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.4.3",
        "status": "affected",
        "version": "11.4.0",
        "versionType": "semver"
      },
      {
        "version": "11.6.0",
        "status": "unaffected"
      },
      {
        "version": "11.5.2",
        "status": "unaffected"
      },
      {
        "version": "10.11.14",
        "status": "unaffected"
      },
      {
        "version": "11.4.4",
        "status": "unaffected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
playbook_idpath/getMattermost fails to check public/private permissions, allowing members without proper permissions to access public playbooks via the /get endpoint.CWE-863

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14 Oct 2026 20:10Current
8.3High risk
Vulners AI Score8.3
CVSS 3.14.3
EPSS0.00165
SSVC
77