{"id":"CVE-2026-93547","published":"2026-09-30T14:17:34.997","lastModified":"2026-09-30T16:38:20.847","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","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-285"],"vendors":[],"products":[],"references":[{"url":"https://github.com/vaadin/flow-components/pull/9905","tags":[]},{"url":"https://github.com/vaadin/flow-components/pull/9907","tags":[]},{"url":"https://github.com/vaadin/flow-components/pull/9908","tags":[]},{"url":"https://github.com/vaadin/flow-components/pull/9909","tags":[]},{"url":"https://github.com/vaadin/flow-components/pull/9910","tags":[]},{"url":"https://github.com/vaadin/flow-components/pull/9956","tags":[]},{"url":"https://github.com/vaadin/spreadsheet/pull/866","tags":[]},{"url":"https://vaadin.com/security/cve-2026-93547","tags":[]}],"exploitRefs":[{"url":"https://github.com/vaadin/flow-components/pull/9905","tags":[]},{"url":"https://github.com/vaadin/flow-components/pull/9907","tags":[]},{"url":"https://github.com/vaadin/flow-components/pull/9908","tags":[]},{"url":"https://github.com/vaadin/flow-components/pull/9909","tags":[]},{"url":"https://github.com/vaadin/flow-components/pull/9910","tags":[]},{"url":"https://github.com/vaadin/flow-components/pull/9956","tags":[]},{"url":"https://github.com/vaadin/spreadsheet/pull/866","tags":[]}],"hasPoc":true,"ai":null}