CVE-2026-2299

{
  "id": "CVE-2026-2299",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-25T20:17:10.763",
  "lastModified": "2026-10-25T22:10:00.150",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Mattermost Google Drive plugin before version 1.1.0 fails to validate channel membership in the file creation endpoint, allowing authenticated users with a connected Google account to share Google Drive files to unauthorized private channels and disclose private channel membership."
    },
    {
      "lang": "es",
      "value": "El plugin de Google Drive de Mattermost anterior a la versión 1.1.0 falla al validar la membresía del canal en el endpoint de creación de archivos, permitiendo a usuarios autenticados con una cuenta de Google conectada compartir archivos de Google Drive en canales privados no autorizados y revelar la membresía de canales privados."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Mattermost",
          "product": "Mattermost Google Drive Plugin",
          "defaultStatus": "unaffected",
          "repo": "https://github.com/mattermost/mattermost-plugin-google-drive",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "1.0.0",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "1.1.0",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "baseScore": 4.2,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 2.5
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-26T14:04:57.007408Z",
          "id": "CVE-2026-2299",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mattermost:google_drive:*:*:*:*:*:mattermost:*:*",
              "versionEndExcluding": "1.1.0",
              "matchCriteriaId": "47639DA2-A1C8-4380-A813-D3B96F3BEF50"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mattermost:google_drive:1.1.0:rc1:*:*:*:mattermost:*:*",
              "matchCriteriaId": "55D809C2-A5F6-47A1-B058-84C8E33F153E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mattermost:google_drive:1.1.0:rc2:*:*:*:mattermost:*:*",
              "matchCriteriaId": "96AD70C3-22A3-4A35-93BC-BA89287F8497"
            }
          ]
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    }
  ],
  "references": [
    {
      "url": "https://github.com/mattermost/mattermost-plugin-google-drive/releases/tag/v1.1.0",
      "source": "[email protected]",
      "tags": [
        "Product",
        "Release Notes"
      ]
    }
  ]
}