{"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": "2026-09-30T13:13:13.074Z"}, "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"}]}], "metrics": [{"cvssV4_0": {"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", "vulnerabilityResponseEffort": "LOW", "providerUrgency": "CLEAR"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-285", "description": "CWE-285 Improper Authorization", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9e0f3122-90e9-42d5-93de-8c6b98deef7e", "shortName": "Vaadin", "dateUpdated": "2026-09-30T13:13:13.074Z"}, "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": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<b><span style=\"background-color: transparent;\">Users of affected versions should apply the following mitigation or upgrade.</span></b><br>"}], "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"}], "x_generator": {"engine": "Vulnogram 0.5.0"}}}}

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