{"id":"CVE-2026-93547","revision":null,"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":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T18:57:20.2923258+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T18:57:20.2923258+00:00","lastSuccessAt":"2026-11-11T18:57:20.5900147+00:00","error":null,"lastVerifiedAt":"2026-11-11T18:57:20.5900175+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-de3b77103708811b6494d2ff7c979037d73ae579742cd1649a5c765137ae5083-3c00b79c9391131991e27b9943a0dadf4eaae3bedbca1cd8e56798cb05f5baee","complete":true,"records":424226,"lastAttemptAt":"2026-11-11T18:57:17.9650425+00:00","lastSuccessAt":"2026-11-11T18:57:17.3257068+00:00","error":null,"lastVerifiedAt":"2026-11-11T18:57:17.9650425+00:00","snapshotPublishedAt":"2026-11-11T18:28:25+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-151835c633b847cdbe04eb3670f18ec8","complete":false,"records":13759,"lastAttemptAt":"2026-11-11T19:07:41.1040307+00:00","lastSuccessAt":"2026-11-11T19:07:41.096+00:00","error":"82 identifier lookups failed; latest failures include AccessDenied (HTTP 403). Other identifiers were checked independently.","lastVerifiedAt":"2026-11-11T19:07:41.096+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13500,"expectedIdentifiers":13813,"failedIdentifiers":82},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T18:57:20.2923258+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T18:57:20.2923258+00:00","lastSuccessAt":"2026-11-11T18:57:24.3127212+00:00","error":null,"lastVerifiedAt":"2026-11-11T18:57:24.3127229+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-ac7d350109df40bdb6ae654767d5a7ea","complete":false,"records":13753,"lastAttemptAt":"2026-11-11T18:57:50.2198185+00:00","lastSuccessAt":"2026-11-11T18:57:50.212+00:00","error":"100 identifier lookups failed; latest failures include request timeout. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-11T18:57:50.212+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13713,"expectedIdentifiers":13813,"failedIdentifiers":100},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T18:57:19.8584027+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T18:57:19.8584027+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-11T18:57:18.9614553+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T18:57:18.9614553+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-baa8362b4daf9e5f39d5563775a55935e7b442c0735d33274a921579ce4a0d66","complete":true,"records":3093,"lastAttemptAt":"2026-11-11T18:57:20.1156075+00:00","lastSuccessAt":"2026-11-11T13:00:02.5446881+00:00","error":null,"lastVerifiedAt":"2026-11-11T18:57:20.1156075+00:00","snapshotPublishedAt":"2026-11-11T12:47:47+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-757d3692f9a7b34792dad960197f3cc953a54db59b7d0ffe3835a0ed9926f76b","complete":true,"records":231690,"lastAttemptAt":"2026-11-11T18:57:19.1723839+00:00","lastSuccessAt":"2026-11-11T17:59:27.5166432+00:00","error":null,"lastVerifiedAt":"2026-11-11T18:57:19.1723839+00:00","snapshotPublishedAt":"2026-11-11T17:48:14+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}