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EPSS 0.1%top 98%

CVE-2026-7860: CWE-209 Generation of Error Message Containing Sensitive Information in vaadin flow

0
Low
VulnerabilityCVE-2026-7860cvecve-2026-7860cwe-209
Published: 05/19/2026 (05/19/2026, 11:01:47 UTC)
Source: CVE Database V5
Vendor/Project: vaadin
Product: flow

Description

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

CVSS v4.0

Score 1.6low

Attack Vector
Local
Attack Complexity
High
Attack Requirements
Present
Privileges Required
Low
User Interaction
Passive
Vuln. Confidentiality
High
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
High
Subsq. Integrity
High
Subsq. Availability
None
Scope
N
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

Affected software

Mavenmore threats →ai
com.vaadin/flow-plugin-base
pkg:maven/com.vaadin/flow-plugin-base
Affected versions
>=23.0.0 <23.6.11>=24.0.0 <24.9.18>=24.10.0 <24.10.4>=25.0.0 <25.0.12>=25.1.0 <25.1.5
Mavenmore threats →ai
com.vaadin/flow-maven-plugin
pkg:maven/com.vaadin/flow-maven-plugin
Affected versions
>=23.0.0 <23.6.11>=24.0.0 <24.9.18>=24.10.0 <24.10.4>=25.0.0 <25.0.12>=25.1.0 <25.1.5
Mavenmore threats →ai
com.vaadin/flow-gradle-plugin
pkg:maven/com.vaadin/flow-gradle-plugin
Affected versions
>=24.0.0 <24.9.18>=24.10.0 <24.10.4>=25.0.0 <25.0.12>=25.1.0 <25.1.5

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 05/26/2026, 20:33:38 UTC

Technical Analysis

This vulnerability (CWE-209) occurs in the Vaadin flow build plugins (Maven and Gradle) where error messages generated on frontend build failures include the entire environment variable set. Since environment variables in build environments often contain secrets such as credentials, these are exposed in clear text in CI logs and artifacts. Affected versions include Vaadin 23.0.0 through 23.6.10, 24.0.0 through 24.9.17, 24.10.0 through 24.10.3, 25.0.0 through 25.0.11, and 25.1.0 through 25.1.4. The vendor has released fixed versions starting from 23.6.11, 24.9.18, 24.10.4, 25.0.12, and 25.1.5 respectively that address this issue by preventing sensitive data exposure in error logs.

Potential Impact

The vulnerability allows disclosure of sensitive environment variables, including credentials, in build logs and archived artifacts when the frontend build process fails. This can lead to exposure of secrets in CI/CD pipelines, potentially compromising security of the build environment and downstream systems that rely on those secrets. The CVSS 4.0 score is low (1.6) reflecting the requirement for local access to trigger the build failure and the presence of high attack complexity and privileges needed.

Mitigation Recommendations

A fix is available. Users should upgrade to one of the fixed versions: 23.6.11 or newer for Vaadin 23, 24.9.18 or newer for Vaadin 24, 24.10.4 or newer for Vaadin 24.10, 25.0.12 or newer for Vaadin 25.0, and 25.1.5 or newer for Vaadin 25.1. Vaadin versions 10-13 and 15-22 are no longer supported and should be upgraded to the latest supported versions. Applying these upgrades will prevent sensitive environment variables from being exposed in build failure logs.

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Technical Details

Data Version
5.2
Assigner Short Name
Vaadin
Date Reserved
2026-05-05T11:51:33.170Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a0c47dcec166c07b097b89a

Added to database: 05/19/2026, 11:22:04 UTC

Last enriched: 05/26/2026, 20:33:38 UTC

Last updated: 07/31/2026, 19:23:00 UTC

Views: 67

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