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CVE-2026-3116

🗓️ 26 Mar 2026 16:19:32Reported by MattermostType 
cve
 cve
🔗 web.nvd.nist.gov👁 7 Views

Disruption possible due to unvalidated webhook request size in Zoom Plugin Webhook Handler for Mattermost plugins.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-3116
26 Mar 202616:19
attackerkb
Circl
CVE-2026-3116
27 Mar 202603:00
circl
CNNVD
Mattermost Plugins 安全漏洞
26 Mar 202600:00
cnnvd
Cvelist
CVE-2026-3116 Improper Input Validation in Zoom Plugin Webhook Handler
26 Mar 202616:19
cvelist
EUVD
EUVD-2026-16246
26 Mar 202618:31
euvd
NVD
CVE-2026-3116
26 Mar 202617:16
nvd
Positive Technologies
PT-2026-28425
26 Mar 202600:00
ptsecurity
Snyk
Denial of Service (DoS)
26 Mar 202618:35
snyk
Snyk
Denial of Service (DoS)
26 Mar 202618:35
snyk
Vulnrichment
CVE-2026-3116 Improper Input Validation in Zoom Plugin Webhook Handler
26 Mar 202616:19
vulnrichment
Rows per page
NVD
Node
mattermostmattermost_serverRange10.11.010.11.12
OR
mattermostmattermost_serverRange11.2.011.2.4
OR
mattermostmattermost_serverRange11.3.011.3.2
OR
mattermostmattermost_serverRange11.4.011.4.1
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "11.0.4",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.1.3",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.3.2",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "10.11.11",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "version": "11.5.0",
        "status": "unaffected"
      },
      {
        "version": "11.4.1",
        "status": "unaffected"
      },
      {
        "version": "11.3.2",
        "status": "unaffected"
      },
      {
        "version": "11.2.4",
        "status": "unaffected"
      },
      {
        "version": "10.11.12",
        "status": "unaffected"
      }
    ]
  }
]

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17 Jun 2026 10:43Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.9
EPSS0.00359
SSVC
7