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CVE-2025-41443

🗓️ 16 Oct 2025 08:10:40Reported by MattermostType 
cve
 cve
🔗 web.nvd.nist.gov👁 13 Views🌐 WEB

Mattermost 10.5.x and 10.11.x fail guest validation, exposing public channels via channels endpoint.

Related
Detection
Affected
Refs
Paths
NVD
Node
mattermostmattermost_serverRange10.5.010.5.11
OR
mattermostmattermost_serverRange10.11.010.11.3
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "10.5.12",
        "status": "affected",
        "version": "10.5.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "10.11.2",
        "status": "affected",
        "version": "10.11.0",
        "versionType": "semver"
      },
      {
        "version": "10.12.0",
        "status": "unaffected"
      },
      {
        "version": "10.5.13",
        "status": "unaffected"
      },
      {
        "version": "10.11.3",
        "status": "unaffected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
team_idpath/api/v4/teams/{team_id}/channels/idsImproper validation allows guest users to access channel IDs/metadata of active public channels.CWE-862

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29 Oct 2025 08:15Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.14.3
EPSS0.00011
SSVC
13