{"id":"CVE-2026-93547","revision":"311a2dbae2fb49108d3132910bcf8186","records":[{"revision":"311a2dbae2fb49108d3132910bcf8186","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-93547","aliases":[],"title":"Missing Authorization Check in Vaadin Spreadsheet Allows Cell Comments to Be Written to Protected Sheets and Locked Cells","description":"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","state":0,"publishedAt":"2026-09-30T13:13:13.074+00:00","modifiedAt":"2026-10-03T13:52:42.352+00:00","affected":[{"ecosystem":"https://repo.maven.apache.org/maven2","name":"com.vaadin:vaadin","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"collectionURL\": \"https://repo.maven.apache.org/maven2\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageName\": \"com.vaadin:vaadin\",\n                    \"product\": \"vaadin\",\n                    \"repo\": \"https://github.com/vaadin/platform\",\n                    \"vendor\": \"vaadin\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"23.6.14\",\n                            \"status\": \"affected\",\n                            \"version\": \"23.1.0\",\n                            \"versionType\": \"maven\"\n                        },\n                        {\n                            \"lessThan\": \"24.9.22\",\n                            \"status\": \"affected\",\n                            \"version\": \"24.0.0\",\n                            \"versionType\": \"maven\"\n                        },\n                        {\n                            \"lessThan\": \"24.10.10\",\n                            \"status\": \"affected\",\n                            \"version\": \"24.10.0\",\n                            \"versionType\": \"maven\"\n                        },\n                        {\n                            \"lessThan\": \"25.1.12\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.0.0\",\n                            \"versionType\": \"maven\"\n                        },\n                        {\n                            \"lessThan\": \"25.2.7\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.2.0\",\n                            \"versionType\": \"maven\"\n                        }\n                    ]\n                }"},{"ecosystem":"https://repo.maven.apache.org/maven2","name":"com.vaadin:vaadin-spreadsheet-flow","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"collectionURL\": \"https://repo.maven.apache.org/maven2\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageName\": \"com.vaadin:vaadin-spreadsheet-flow\",\n                    \"product\": \"vaadin-spreadsheet-flow\",\n                    \"repo\": \"https://github.com/vaadin/flow-components\",\n                    \"vendor\": \"vaadin\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"23.6.14\",\n                            \"status\": \"affected\",\n                            \"version\": \"23.1.0\",\n                            \"versionType\": \"maven\"\n                        },\n                        {\n                            \"lessThan\": \"24.9.22\",\n                            \"status\": \"affected\",\n                            \"version\": \"24.0.0\",\n                            \"versionType\": \"maven\"\n                        },\n                        {\n                            \"lessThan\": \"24.10.10\",\n                            \"status\": \"affected\",\n                            \"version\": \"24.10.0\",\n                            \"versionType\": \"maven\"\n                        },\n                        {\n                            \"lessThan\": \"25.1.12\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.0.0\",\n                            \"versionType\": \"maven\"\n                        },\n                        {\n                            \"lessThan\": \"25.2.7\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.2.0\",\n                            \"versionType\": \"maven\"\n                        }\n                    ]\n                }"},{"ecosystem":"https://maven.vaadin.com/vaadin-addons","name":"com.vaadin:vaadin-spreadsheet","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"collectionURL\": \"https://maven.vaadin.com/vaadin-addons\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageName\": \"com.vaadin:vaadin-spreadsheet\",\n                    \"product\": \"vaadin-spreadsheet\",\n                    \"repo\": \"https://github.com/vaadin/spreadsheet\",\n                    \"vendor\": \"vaadin\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"3.1.1\",\n                            \"status\": \"affected\",\n                            \"version\": \"2.0.0\",\n                            \"versionType\": \"maven\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":5.3,"severity":"MEDIUM"}],"references":["https://vaadin.com/security/cve-2026-93547","https://github.com/vaadin/flow-components/pull/9905","https://github.com/vaadin/flow-components/pull/9907","https://github.com/vaadin/flow-components/pull/9908","https://github.com/vaadin/flow-components/pull/9909","https://github.com/vaadin/flow-components/pull/9910","https://github.com/vaadin/flow-components/pull/9956","https://github.com/vaadin/spreadsheet/pull/866"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-93547","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-93547","identifiers":["CVE-2026-93547"]},"retained":false,"historicalAffected":[]}],"coverage":[]}