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    "cveMetadata": {
        "cveId": "CVE-2026-2299",
        "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
        "state": "PUBLISHED",
        "assignerShortName": "Mattermost",
        "dateReserved": "2026-02-10T16:46:56.322Z",
        "datePublished": "2026-06-25T18:55:11.905Z",
        "dateUpdated": "2026-06-26T14:05:09.476Z"
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                    "defaultStatus": "unaffected",
                    "product": "Mattermost Google Drive Plugin",
                    "repo": "https://github.com/mattermost/mattermost-plugin-google-drive",
                    "vendor": "Mattermost",
                    "versions": [
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                            "lessThanOrEqual": "1.0.0",
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver"
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                            "version": "1.1.0"
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                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Lorenzo Gallegos"
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                            "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."
                        }
                    ],
                    "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."
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            "metrics": [
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                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 4.2,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
                        "version": "3.1"
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                    "format": "CVSS",
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                            "lang": "en",
                            "value": "GENERAL"
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            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-862",
                            "description": "CWE-862: Missing Authorization",
                            "lang": "en",
                            "type": "CWE"
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            "providerMetadata": {
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                "shortName": "Mattermost",
                "dateUpdated": "2026-06-25T18:55:11.905Z"
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            "references": [
                {
                    "url": "https://github.com/mattermost/mattermost-plugin-google-drive/releases/tag/v1.1.0"
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "supportingMedia": [
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                            "base64": false,
                            "type": "text/html",
                            "value": "<p>Update Mattermost Google Drive plugin to version 1.1.0 or higher.</p>"
                        }
                    ],
                    "value": "Update Mattermost Google Drive plugin to version 1.1.0 or higher."
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "title": "Improper Access Control in Mattermost Google Drive Plugin File Creation Endpoint",
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        "adp": [
            {
                "metrics": [
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                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-26T14:04:57.007408Z",
                                "id": "CVE-2026-2299",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
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                                        "Technical Impact": "partial"
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                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                "title": "CISA ADP Vulnrichment",
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                    "dateUpdated": "2026-06-26T14:05:09.476Z"
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}