{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-93547",
        "assignerOrgId": "9e0f3122-90e9-42d5-93de-8c6b98deef7e",
        "state": "PUBLISHED",
        "assignerShortName": "Vaadin",
        "dateReserved": "2026-09-18T09:22:10.216Z",
        "datePublished": "2026-09-30T13:13:13.074Z",
        "dateUpdated": "2026-10-03T13:52:42.352Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://repo.maven.apache.org/maven2",
                    "defaultStatus": "unaffected",
                    "packageName": "com.vaadin:vaadin",
                    "product": "vaadin",
                    "repo": "https://github.com/vaadin/platform",
                    "vendor": "vaadin",
                    "versions": [
                        {
                            "lessThan": "23.6.14",
                            "status": "affected",
                            "version": "23.1.0",
                            "versionType": "maven"
                        },
                        {
                            "lessThan": "24.9.22",
                            "status": "affected",
                            "version": "24.0.0",
                            "versionType": "maven"
                        },
                        {
                            "lessThan": "24.10.10",
                            "status": "affected",
                            "version": "24.10.0",
                            "versionType": "maven"
                        },
                        {
                            "lessThan": "25.1.12",
                            "status": "affected",
                            "version": "25.0.0",
                            "versionType": "maven"
                        },
                        {
                            "lessThan": "25.2.7",
                            "status": "affected",
                            "version": "25.2.0",
                            "versionType": "maven"
                        }
                    ]
                },
                {
                    "collectionURL": "https://repo.maven.apache.org/maven2",
                    "defaultStatus": "unaffected",
                    "packageName": "com.vaadin:vaadin-spreadsheet-flow",
                    "product": "vaadin-spreadsheet-flow",
                    "repo": "https://github.com/vaadin/flow-components",
                    "vendor": "vaadin",
                    "versions": [
                        {
                            "lessThan": "23.6.14",
                            "status": "affected",
                            "version": "23.1.0",
                            "versionType": "maven"
                        },
                        {
                            "lessThan": "24.9.22",
                            "status": "affected",
                            "version": "24.0.0",
                            "versionType": "maven"
                        },
                        {
                            "lessThan": "24.10.10",
                            "status": "affected",
                            "version": "24.10.0",
                            "versionType": "maven"
                        },
                        {
                            "lessThan": "25.1.12",
                            "status": "affected",
                            "version": "25.0.0",
                            "versionType": "maven"
                        },
                        {
                            "lessThan": "25.2.7",
                            "status": "affected",
                            "version": "25.2.0",
                            "versionType": "maven"
                        }
                    ]
                },
                {
                    "collectionURL": "https://maven.vaadin.com/vaadin-addons",
                    "defaultStatus": "unaffected",
                    "packageName": "com.vaadin:vaadin-spreadsheet",
                    "product": "vaadin-spreadsheet",
                    "repo": "https://github.com/vaadin/spreadsheet",
                    "vendor": "vaadin",
                    "versions": [
                        {
                            "lessThan": "3.1.1",
                            "status": "affected",
                            "version": "2.0.0",
                            "versionType": "maven"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<span style=\"background-color: rgba(232, 232, 232, 0.04);\">A missing authorization check in the Vaadin Spreadsheet component allows an authenticated user of an application that renders a spreadsheet to add or replace cell comments on a sheet that has protection enabled, including on cells that are locked. Writing a comment to a cell that does not exist yet also creates the row and the cell.<br><br><br>Users of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include:<br><br>Product version<br>Vaadin 23.1.0 - 23.6.13<br>Vaadin 24.0.0 - 24.9.21<br>Vaadin 24.10.0 - 24.10.9<br>Vaadin 25.0.0 - 25.1.11<br>Vaadin 25.2.0 - 25.2.6<br>Vaadin Framework 7 and 8 with the Spreadsheet add-on 2.0.0 - 3.1.0<br><br>Mitigation<br>Upgrade to 23.6.14<br>Upgrade to 24.9.22<br>Upgrade to 24.10.10<br>Upgrade to 25.1.12<br>Upgrade to 25.2.7 or newer<br>Upgrade the Spreadsheet add-on to 3.1.1<br><br>Please note that Vaadin versions 10-13 and 15-22 are no longer supported and you should update either to the latest 23, 24, 25 version.<br><br>Artifacts<table><tbody><tr><td>Maven coordinates</td><td>Vulnerable versions</td><td>Fixed version</td></tr><tr><td>com.vaadin:vaadin<br></td><td>23.1.0 - 23.6.13<br></td><td>&ge;23.6.14<br></td></tr><tr><td>com.vaadin:vaadin<br></td><td>24.0.0 - 24.9.21<br></td><td>&ge;24.9.22<br></td></tr><tr><td>com.vaadin:vaadin<br></td><td>24.10.0 - 24.10.9<br></td><td>&ge;24.10.10<br></td></tr><tr><td>com.vaadin:vaadin<br></td><td>25.0.0 - 25.1.11<br></td><td>&ge;25.1.12<br></td></tr><tr><td>com.vaadin:vaadin<br></td><td>25.2.0 - 25.2.6<br></td><td>&ge;25.2.7<br></td></tr><tr><td>com.vaadin:vaadin-spreadsheet-flow<br></td><td>23.1.0 - 23.6.13<br></td><td>&ge;23.6.14<br></td></tr><tr><td>com.vaadin:vaadin-spreadsheet-flow<br></td><td>24.0.0 - 24.9.21<br></td><td>&ge;24.9.22<br></td></tr><tr><td>com.vaadin:vaadin-spreadsheet-flow<br></td><td>24.10.0 - 24.10.9<br></td><td>&ge;24.10.10<br></td></tr><tr><td>com.vaadin:vaadin-spreadsheet-flow<br></td><td>25.0.0 - 25.1.11<br></td><td>&ge;25.1.12<br></td></tr><tr><td>com.vaadin:vaadin-spreadsheet-flow<br></td><td>25.2.0 - 25.2.6<br></td><td>&ge;25.2.7<br></td></tr><tr><td>com.vaadin:vaadin-spreadsheet<br></td><td>2.0.0 - 3.1.0<br></td><td>&ge;3.1.1<br></td></tr></tbody></table><br></span>"
                        }
                    ],
                    "value": "A missing authorization check in the Vaadin Spreadsheet component allows an authenticated user of an application that renders a spreadsheet to add or replace cell comments on a sheet that has protection enabled, including on cells that are locked. Writing a comment to a cell that does not exist yet also creates the row and the cell.\n\n\nUsers of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include:\n\nProduct version\nVaadin 23.1.0 - 23.6.13\nVaadin 24.0.0 - 24.9.21\nVaadin 24.10.0 - 24.10.9\nVaadin 25.0.0 - 25.1.11\nVaadin 25.2.0 - 25.2.6\nVaadin Framework 7 and 8 with the Spreadsheet add-on 2.0.0 - 3.1.0\n\nMitigation\nUpgrade to 23.6.14\nUpgrade to 24.9.22\nUpgrade to 24.10.10\nUpgrade to 25.1.12\nUpgrade to 25.2.7 or newer\nUpgrade the Spreadsheet add-on to 3.1.1\n\nPlease note that Vaadin versions 10-13 and 15-22 are no longer supported and you should update either to the latest 23, 24, 25 version.\n\nArtifacts\nMaven coordinates Vulnerable versions Fixed version\ncom.vaadin:vaadin 23.1.0 - 23.6.13 >=23.6.14\ncom.vaadin:vaadin 24.0.0 - 24.9.21 >=24.9.22\ncom.vaadin:vaadin 24.10.0 - 24.10.9 >=24.10.10\ncom.vaadin:vaadin 25.0.0 - 25.1.11 >=25.1.12\ncom.vaadin:vaadin 25.2.0 - 25.2.6 >=25.2.7\ncom.vaadin:vaadin-spreadsheet-flow 23.1.0 - 23.6.13 >=23.6.14\ncom.vaadin:vaadin-spreadsheet-flow 24.0.0 - 24.9.21 >=24.9.22\ncom.vaadin:vaadin-spreadsheet-flow 24.10.0 - 24.10.9 >=24.10.10\ncom.vaadin:vaadin-spreadsheet-flow 25.0.0 - 25.1.11 >=25.1.12\ncom.vaadin:vaadin-spreadsheet-flow 25.2.0 - 25.2.6 >=25.2.7\ncom.vaadin:vaadin-spreadsheet 2.0.0 - 3.1.0 >=3.1.1"
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-122",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-122 Privilege Abuse"
                        }
                    ]
                }
            ],
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                {
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                        "version": "4.0",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "Automatable": "NO",
                        "Recovery": "AUTOMATIC",
                        "Safety": "NEGLIGIBLE",
                        "valueDensity": "DIFFUSE",
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                        {
                            "cweId": "CWE-285",
                            "description": "CWE-285 Improper Authorization",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "9e0f3122-90e9-42d5-93de-8c6b98deef7e",
                "shortName": "Vaadin",
                "dateUpdated": "2026-10-03T13:52:42.352Z"
            },
            "references": [
                {
                    "url": "https://vaadin.com/security/cve-2026-93547"
                },
                {
                    "url": "https://github.com/vaadin/flow-components/pull/9905"
                },
                {
                    "url": "https://github.com/vaadin/flow-components/pull/9907"
                },
                {
                    "url": "https://github.com/vaadin/flow-components/pull/9908"
                },
                {
                    "url": "https://github.com/vaadin/flow-components/pull/9909"
                },
                {
                    "url": "https://github.com/vaadin/flow-components/pull/9910"
                },
                {
                    "url": "https://github.com/vaadin/flow-components/pull/9956"
                },
                {
                    "url": "https://github.com/vaadin/spreadsheet/pull/866"
                }
            ],
            "solutions": [
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                        }
                    ],
                    "value": "Users of affected versions should apply the following mitigation or upgrade."
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "title": "Missing Authorization Check in Vaadin Spreadsheet Allows Cell Comments to Be Written to Protected Sheets and Locked Cells",
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Arpit Jain (GitHub: arpitjain099)"
                }
            ],
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                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-30T14:25:51.477902Z",
                                "id": "CVE-2026-93547",
                                "options": [
                                    {
                                        "Exploitation": "none"
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                "title": "CISA ADP Vulnrichment",
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                    "dateUpdated": "2026-09-30T14:26:02.005Z"
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}