CVE-2026-93547

MediumCVSS 5.3/10Last modified Sep 30, 2026

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

Metrics

CVSS 4.0 5.3/10CVSS: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

Weakness enumeration

CWE-285

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Sep 30, 2026
Last modified
Sep 30, 2026
NVD status
Awaiting Analysis

Related CVEs from 2026

CVE-2026-935488.8The FooSales WordPress plugin before 1.43.3 does not verify that an authenticated caller is entitled to act as the user a request names, alCVE-2026-935498.8The CoCart WordPress plugin before 4.9.7 does not scope its REST API authentication filter to its own endpoints, which disables WordPress cCVE-2026-93557.3A flaw has been found in SourceCodester Hospitals Patient Records Management System 1.0. The impacted element is an unknown function of the CVE-2026-935504.3The Veeqo for WooCommerce WordPress plugin through 2.2.8 does not restrict who can trigger its remote bridge-installation process or validatCVE-2026-935569.3The ‘/password/guardarClau/recover’ endpoint accepts the ‘usuariId’ parameter, which specifies the account whose password is to be changed. CVE-2026-935587.5A flaw was found in Netty's WebSocketServerExtensionHandler. A remote, unauthenticated attacker can exploit this vulnerability by using HTTPCVE-2026-935597.3A vulnerability was identified in Forget-C Jellyfish AI Short Drama Studio 0.1.0-alpha/0.2.0/0.3.0/0.3.1/0.3.2. This affects an unknown funcCVE-2026-93567.3A vulnerability has been found in SourceCodester Hospitals Patient Records Management System 1.0. This affects an unknown function of the fiCVE-2026-935607.5A flaw was found in the Netty STOMP codec. A remote attacker could send a specially crafted STOMP frame with a content-length header exceediCVE-2026-935616.5A flaw was found in io.netty/netty-codec-memcache. The Memcache binary protocol codec incorrectly reads `keyLength` and `extrasLength` as siCVE-2026-935626.5A flaw was found in Netty's HTTP/1 decoder. Incomplete validation of malformed Transfer-Encoding headers allows a remote attacker to performCVE-2026-935637.5A flaw was found in Netty's `SmtpResponseDecoder` component. A remote attacker, acting as a malicious or man-in-the-middle (MITM) SMTP serve