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.


Users of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include:

Product version
Vaadin 23.1.0 - 23.6.13
Vaadin 24.0.0 - 24.9.21
Vaadin 24.10.0 - 24.10.9
Vaadin 25.0.0 - 25.1.11
Vaadin 25.2.0 - 25.2.6
Vaadin Framework 7 and 8 with the Spreadsheet add-on 2.0.0 - 3.1.0

Mitigation
Upgrade to 23.6.14
Upgrade to 24.9.22
Upgrade to 24.10.10
Upgrade to 25.1.12
Upgrade to 25.2.7 or newer
Upgrade the Spreadsheet add-on to 3.1.1

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.

Artifacts
Maven coordinates Vulnerable versions Fixed version
com.vaadin:vaadin 23.1.0 - 23.6.13 >=23.6.14
com.vaadin:vaadin 24.0.0 - 24.9.21 >=24.9.22
com.vaadin:vaadin 24.10.0 - 24.10.9 >=24.10.10
com.vaadin:vaadin 25.0.0 - 25.1.11 >=25.1.12
com.vaadin:vaadin 25.2.0 - 25.2.6 >=25.2.7
com.vaadin:vaadin-spreadsheet-flow 23.1.0 - 23.6.13 >=23.6.14
com.vaadin:vaadin-spreadsheet-flow 24.0.0 - 24.9.21 >=24.9.22
com.vaadin:vaadin-spreadsheet-flow 24.10.0 - 24.10.9 >=24.10.10
com.vaadin:vaadin-spreadsheet-flow 25.0.0 - 25.1.11 >=25.1.12
com.vaadin:vaadin-spreadsheet-flow 25.2.0 - 25.2.6 >=25.2.7
com.vaadin:vaadin-spreadsheet 2.0.0 - 3.1.0 >=3.1.1

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
vaadin vaadin unaffected
Version Status Constraints
23.1.0 affected < 23.6.14
24.0.0 affected < 24.9.22
24.10.0 affected < 24.10.10
25.0.0 affected < 25.1.12
25.2.0 affected < 25.2.7
vaadin vaadin-spreadsheet-flow unaffected
Version Status Constraints
23.1.0 affected < 23.6.14
24.0.0 affected < 24.9.22
24.10.0 affected < 24.10.10
25.0.0 affected < 25.1.12
25.2.0 affected < 25.2.7
vaadin vaadin-spreadsheet unaffected
Version Status Constraints
2.0.0 affected < 3.1.1

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

Users of affected versions should apply the following mitigation or upgrade.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/vaadin/flow-components/pull/9905 cve-icon cve-icon
https://github.com/vaadin/flow-components/pull/9907 cve-icon cve-icon
https://github.com/vaadin/flow-components/pull/9908 cve-icon cve-icon
https://github.com/vaadin/flow-components/pull/9909 cve-icon cve-icon
https://github.com/vaadin/flow-components/pull/9910 cve-icon cve-icon
https://github.com/vaadin/flow-components/pull/9956 cve-icon cve-icon
https://github.com/vaadin/spreadsheet/pull/866 cve-icon cve-icon
https://vaadin.com/security/cve-2026-93547 cve-icon cve-icon
History

Wed, 30 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 30 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
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. Users of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include: Product version Vaadin 23.1.0 - 23.6.13 Vaadin 24.0.0 - 24.9.21 Vaadin 24.10.0 - 24.10.9 Vaadin 25.0.0 - 25.1.11 Vaadin 25.2.0 - 25.2.6 Vaadin Framework 7 and 8 with the Spreadsheet add-on 2.0.0 - 3.1.0 Mitigation Upgrade to 23.6.14 Upgrade to 24.9.22 Upgrade to 24.10.10 Upgrade to 25.1.12 Upgrade to 25.2.7 or newer Upgrade the Spreadsheet add-on to 3.1.1 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. Artifacts Maven coordinates Vulnerable versions Fixed version com.vaadin:vaadin 23.1.0 - 23.6.13 >=23.6.14 com.vaadin:vaadin 24.0.0 - 24.9.21 >=24.9.22 com.vaadin:vaadin 24.10.0 - 24.10.9 >=24.10.10 com.vaadin:vaadin 25.0.0 - 25.1.11 >=25.1.12 com.vaadin:vaadin 25.2.0 - 25.2.6 >=25.2.7 com.vaadin:vaadin-spreadsheet-flow 23.1.0 - 23.6.13 >=23.6.14 com.vaadin:vaadin-spreadsheet-flow 24.0.0 - 24.9.21 >=24.9.22 com.vaadin:vaadin-spreadsheet-flow 24.10.0 - 24.10.9 >=24.10.10 com.vaadin:vaadin-spreadsheet-flow 25.0.0 - 25.1.11 >=25.1.12 com.vaadin:vaadin-spreadsheet-flow 25.2.0 - 25.2.6 >=25.2.7 com.vaadin:vaadin-spreadsheet 2.0.0 - 3.1.0 >=3.1.1
Title Missing Authorization Check in Vaadin Spreadsheet Allows Cell Comments to Be Written to Protected Sheets and Locked Cells
Weaknesses CWE-285
References
Metrics cvssV4_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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Vaadin

Published:

Updated: 2026-09-30T14:26:02.005Z

Reserved: 2026-09-18T09:22:10.216Z

Link: CVE-2026-93547

cve-icon Vulnrichment

Updated: 2026-09-30T14:25:57.779Z

cve-icon NVD

Status : Received

Published: 2026-09-30T14:17:34.997

Modified: 2026-09-30T15:22:36.723

Link: CVE-2026-93547

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T15:30:14Z

Weaknesses