CVE-2026-7860 LOW

CVE-2026-7860: Possible information disclosure of environment variables in Vaadin Build Plugins via Failed Frontend Build

Vendor Vaadin
Product flow
Weakness CWE-209 · Error message info leak
Published May 19, 2026
Last update May 21, 2026

CVSS base score

1.6/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N/E:U/S:N/AU:N/R:A/V:C/RE:L/U:Green

What the vulnerability does

01Description

A possible information disclosure vulnerability exists in the Vaadin Maven plugin and Vaadin Gradle plugin that exposes the full set of environment variables in build logs whenever the frontend build process exits with a non-zero status. Because the build environment may contain credentials supplied as secrets, any failed frontend build can expose those secrets in clear text in CI logs and archived build artifacts. Users of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include: Product version Vaadin 23.0.0 - 23.6.9 Vaadin 24.0.0 - 24.9.16 Vaadin 24.10.0 - 24.10.3 Vaadin 25.0.0 - 25.0.10 Vaadin 25.1.0 - 25.1.4 Mitigation Upgrade to 23.6.10 Upgrade to 24.9.17 or newer Upgrade to 24.10.4 or newer Upgrade to 25.0.11 or newer Upgrade to 25.1.5 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, or 25 version. ArtifactsMaven coordinatesVulnerable versionsFixed versioncom.vaadin:flow-plugin-base23.0.0 - 23.6.10≥23.6.11com.vaadin:flow-plugin-base24.0.0 - 24.9.17≥24.9.18com.vaadin:flow-plugin-base24.10.0 - 24.10.3≥24.10.4com.vaadin:flow-plugin-base25.0.0 - 25.0.11≥25.0.12com.vaadin:flow-plugin-base25.1.0 - 25.1.4≥25.1.5com.vaadin:flow-maven-plugin23.0.0 - 23.6.10≥23.6.11com.vaadin:flow-maven-plugin24.0.0 - 24.9.17≥24.9.18com.vaadin:flow-maven-plugin24.10.0 - 24.10.3≥24.10.4com.vaadin:flow-maven-plugin25.0.0 - 25.0.11≥25.0.12com.vaadin:flow-maven-plugin25.1.0 - 25.1.4≥25.1.5com.vaadin:flow-gradle-plugin24.0.0 - 24.9.17≥24.9.18com.vaadin:flow-gradle-plugin24.10.0 - 24.10.3≥24.10.4com.vaadin:flow-gradle-plugin25.0.0 - 25.0.11≥25.0.12com.vaadin:flow-gradle-plugin25.1.0 - 25.1.4≥25.1.5

Key dates

02Disclosure timeline

May 19, 2026 CVE published
May 21, 2026 Record updated