CVEvulnerability
CVE-2026-91860
6.3 MEDIUM
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-09-30
- Last modified
- 2026-09-30
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 6.3 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/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
- Weaknesses
- CWE-1321
Description
A prototype pollution vulnerability exists in the deep merge helpers of Vaadin Charts and Vaadin Component Base. Merging an object the application does not control into a chart configuration or into a component's i18n property writes onto Object.prototype, making the injected properties visible to every object in the running application.
Users of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include:
Product version
Vaadin 23.0.0 - 23.6.13
Vaadin 24.0.0 - 24.9.20
Vaadin 24.10.0 - 24.10.9
Vaadin 25.0.0 - 25.1.11
Vaadin 25.2.0 - 25.2.6
Mitigation
Upgrade to 23.6.14
Upgrade to 24.9.21
Upgrade to 24.10.10
Upgrade to 25.1.12
Upgrade to 25.2.7 or newer
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 23.0.0 - 23.6.13 >=23.6.14
com.vaadin:vaadin 24.0.0 - 24.9.20 >=24.9.21
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-core 24.7.0 - 24.9.20 >=24.9.21
com.vaadin:vaadin-core 24.10.0 - 24.10.9 >=24.10.10
com.vaadin:vaadin-core 25.0.0 - 25.1.11 >=25.1.12
com.vaadin:vaadin-core 25.2.0 - 25.2.6 >=25.2.7
com.vaadin:vaadin-charts-flow 23.0.0 - 23.6.13 >=23.6.14
com.vaadin:vaadin-charts-flow 24.0.0 - 24.9.20 >=24.9.21
com.vaadin:vaadin-charts-flow 24.10.0 - 24.10.9 >=24.10.10
com.vaadin:vaadin-charts-flow 25.0.0 - 25.1.11 >=25.1.12
com.vaadin:vaadin-charts-flow 25.2.0 - 25.2.6 >=25.2.7
npm packages
npm package Vulnerable versions Fixed version
@vaadin/charts 23.0.0 - 23.6.4 >=23.6.5
@vaadin/charts 24.0.0 - 24.9.17 >=24.9.18
@vaadin/charts 24.10.0 - 24.10.4 >=24.10.5
@vaadin/charts 25.0.0 - 25.1.11 >=25.1.12
@vaadin/charts 25.2.0 - 25.2.8 >=25.2.9
@vaadin/component-base 24.7.0 - 24.9.17 >=24.9.18
@vaadin/component-base 24.10.0 - 24.10.4 >=24.10.5
@vaadin/component-base 25.0.0 - 25.1.11 >=25.1.12
@vaadin/component-base 25.2.0 - 25.2.8 >=25.2.9
Related
Weakness · CWE (1)
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes weakness
References
- https://github.com/vaadin/web-components/pull/12483 github.com
- https://github.com/vaadin/web-components/pull/12492 github.com
- https://github.com/vaadin/web-components/pull/12493 github.com
- https://github.com/vaadin/web-components/pull/12494 github.com
- https://github.com/vaadin/web-components/pull/12496 github.com
- https://github.com/vaadin/web-components/pull/12559 github.com
- https://vaadin.com/security/cve-2026-91860 vaadin.com