CVE-2026-93547

Published: Set 30, 2026 Last Modified: Set 30, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

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

285

Improper Authorization

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control
Potential Impacts:
Read Application Data Read Files Or Directories Modify Application Data Modify Files Or Directories Gain Privileges Or Assume Identity Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: Not Technology-Specific, Web Server, Database Server
Likelihood of Exploit: High
View CWE Details
https://github.com/vaadin/flow-components/pull/9905
https://github.com/vaadin/flow-components/pull/9905
https://github.com/vaadin/flow-components/pull/9907
https://github.com/vaadin/flow-components/pull/9907
https://github.com/vaadin/flow-components/pull/9908
https://github.com/vaadin/flow-components/pull/9908
https://github.com/vaadin/flow-components/pull/9909
https://github.com/vaadin/flow-components/pull/9909
https://github.com/vaadin/flow-components/pull/9910
https://github.com/vaadin/flow-components/pull/9910
https://github.com/vaadin/flow-components/pull/9956
https://github.com/vaadin/flow-components/pull/9956
https://github.com/vaadin/spreadsheet/pull/866
https://github.com/vaadin/spreadsheet/pull/866
https://vaadin.com/security/cve-2026-93547
https://vaadin.com/security/cve-2026-93547