{"id":"CVE-2026-93547","aliases":["EUVD-2026-89952","GHSA-74m8-whmf-rxrq"],"status":"published","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 \u003e=23.6.14\ncom.vaadin:vaadin 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet-flow 23.1.0 - 23.6.13 \u003e=23.6.14\ncom.vaadin:vaadin-spreadsheet-flow 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin-spreadsheet-flow 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin-spreadsheet-flow 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin-spreadsheet-flow 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet 2.0.0 - 3.1.0 \u003e=3.1.1","severity":{"version":"4.0","score":5.3,"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00363,"percentile":0.30391,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-285"],"published":"2026-09-30T13:13:13Z","modified":"2026-10-28T11:19:49Z","products":[{"vendor":"vaadin","product":"vaadin"},{"vendor":"vaadin","product":"vaadin-spreadsheet"},{"vendor":"vaadin","product":"vaadin-spreadsheet-flow"}],"references":[{"url":"https://vaadin.com/security/cve-2026-93547","tags":["web"]},{"url":"https://github.com/vaadin/flow-components/pull/9905","tags":["fix"]},{"url":"https://github.com/vaadin/flow-components/pull/9907","tags":["fix"]},{"url":"https://github.com/vaadin/flow-components/pull/9908","tags":["fix"]},{"url":"https://github.com/vaadin/flow-components/pull/9909","tags":["fix"]},{"url":"https://github.com/vaadin/flow-components/pull/9910","tags":["fix"]},{"url":"https://github.com/vaadin/flow-components/pull/9956","tags":["fix"]},{"url":"https://github.com/vaadin/spreadsheet/pull/866","tags":["fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93547","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-74m8-whmf-rxrq"},{"url":"https://maven.vaadin.com/vaadin-addons","tags":["web"]},{"url":"https://repo.maven.apache.org/maven2","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93547.json","tags":["advisory"]},{"url":"https://github.com/vaadin/flow-components","tags":["package"]},{"url":"https://github.com/vaadin/platform","tags":["package"]},{"url":"https://github.com/vaadin/spreadsheet","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-93547","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 \u003e=23.6.14\ncom.vaadin:vaadin 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet-flow 23.1.0 - 23.6.13 \u003e=23.6.14\ncom.vaadin:vaadin-spreadsheet-flow 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin-spreadsheet-flow 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin-spreadsheet-flow 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin-spreadsheet-flow 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet 2.0.0 - 3.1.0 \u003e=3.1.1","status":"published","published":"2026-09-30T13:13:13.074Z","modified":"2026-10-03T13:52:42.352Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium","assessor":"cna"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T14:19:54.122945Z"}],"euvd":[{"id":"EUVD-2026-89952","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 \u003e=23.6.14\ncom.vaadin:vaadin 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet-flow 23.1.0 - 23.6.13 \u003e=23.6.14\ncom.vaadin:vaadin-spreadsheet-flow 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin-spreadsheet-flow 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin-spreadsheet-flow 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin-spreadsheet-flow 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet 2.0.0 - 3.1.0 \u003e=3.1.1","status":"published","published":"2026-09-30T13:13:13Z","modified":"2026-10-03T13:52:42Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium"}],"updated_at":"2026-11-02T17:27:41.460827Z"}],"ghsa":[{"id":"GHSA-74m8-whmf-rxrq","title":"A missing authorization check in the Vaadin Spreadsheet component allows an authenticated user of...","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 \u003e=23.6.14\ncom.vaadin:vaadin 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet-flow 23.1.0 - 23.6.13 \u003e=23.6.14\ncom.vaadin:vaadin-spreadsheet-flow 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin-spreadsheet-flow 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin-spreadsheet-flow 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin-spreadsheet-flow 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet 2.0.0 - 3.1.0 \u003e=3.1.1","status":"published","published":"2026-09-30T15:31:33Z","modified":"2026-09-30T15:31:39Z","cvss":[{"version":"4.0","score":5.3,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T15:12:36.997507Z"}],"nvd":[{"id":"CVE-2026-93547","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 \u003e=23.6.14\ncom.vaadin:vaadin 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet-flow 23.1.0 - 23.6.13 \u003e=23.6.14\ncom.vaadin:vaadin-spreadsheet-flow 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin-spreadsheet-flow 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin-spreadsheet-flow 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin-spreadsheet-flow 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet 2.0.0 - 3.1.0 \u003e=3.1.1","status":"published","published":"2026-09-30T14:17:34.997Z","modified":"2026-09-30T16:38:20.847Z","cvss":[{"version":"4.0","score":5.3,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T14:12:52.759595Z"}],"osv":[{"id":"CVE-2026-93547","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 \u003e=23.6.14\ncom.vaadin:vaadin 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet-flow 23.1.0 - 23.6.13 \u003e=23.6.14\ncom.vaadin:vaadin-spreadsheet-flow 24.0.0 - 24.9.21 \u003e=24.9.22\ncom.vaadin:vaadin-spreadsheet-flow 24.10.0 - 24.10.9 \u003e=24.10.10\ncom.vaadin:vaadin-spreadsheet-flow 25.0.0 - 25.1.11 \u003e=25.1.12\ncom.vaadin:vaadin-spreadsheet-flow 25.2.0 - 25.2.6 \u003e=25.2.7\ncom.vaadin:vaadin-spreadsheet 2.0.0 - 3.1.0 \u003e=3.1.1","status":"published","published":"2026-09-30T13:13:13.074Z","modified":"2026-10-28T11:19:49.541198112Z","cvss":[{"version":"4.0","score":5.3,"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","level":"medium"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T15:45:20.931171Z"}]}}