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CVE-2026-95666

🗓️ 22 Sep 2026 13:11:13Reported by MattermostType 
cve
 cve
🔗 web.nvd.nist.gov👁 3 Views

Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-95666 Unbounded post ID array in the bulk reactions endpoint allows denial of service
22 Sep 202613:11
cvelist
euvd
EUVD
EUVD-2026-84378
22 Sep 202613:11
euvd
nvd
NVD
CVE-2026-95666
22 Sep 202614:17
nvd
Vulners
Node
OR
mattermostmattermostRange11.9.1
mattermostmattermostRange11.8.5
mattermostmattermostRange11.7.10
mattermostmattermostRange11.10.1
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "11.9.1",
        "status": "affected",
        "version": "11.9.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.8.5",
        "status": "affected",
        "version": "11.8.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.7.10",
        "status": "affected",
        "version": "11.7.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.10.1",
        "status": "affected",
        "version": "11.10.0",
        "versionType": "semver"
      },
      {
        "version": "11.11.0",
        "status": "unaffected"
      },
      {
        "version": "11.9.2",
        "status": "unaffected"
      },
      {
        "version": "11.8.6",
        "status": "unaffected"
      },
      {
        "version": "11.7.11",
        "status": "unaffected"
      },
      {
        "version": "11.10.2",
        "status": "unaffected"
      }
    ]
  }
]

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22 Sep 2026 14:17Current
CVSS 3.14.3
3