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CVE-2026-7860

Possible information disclosure of environment variables in Vaadin Build Plugins via Failed Frontend Build

Low1.6EPSS 0.12%
Published
Updated
Reserved
Assigned by
Vaadin

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-plugin23.0.0 - 23.6.10≥23.6.11com.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

Timeline

  1. ID reserved

    By Vaadin

  2. · 14 days later

    Published

  3. · 4 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-7860, by who scored it
Scored byCVSSScoreVector
VaadinCNA (assigner)4.0Low1.6CVSS: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
NVDNVD · Awaiting Analysis4.0Low1.6CVSS: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/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:N/AU:N/R:A/V:C/RE:L/U:Green
EPSS (exploitation in 30 days)
0.12% · top 98% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 1.6.

Weakness

Affected products

  • vaadin · flow

    • affected 23.0.0 – ≤ 23.6.10
    • affected 24.0.0 – ≤ 24.9.17
    • affected 24.10.0 – ≤ 24.10.3
    • affected 25.0.0 – ≤ 25.0.11
    • affected 25.1.0 – ≤ 25.1.4

  • vaadin · flow

    • affected 23.0.0 – ≤ 23.6.10
    • affected 24.0.0 – ≤ 24.9.17
    • affected 24.10.0 – ≤ 24.10.3
    • affected 25.0.0 – ≤ 25.0.11
    • affected 25.1.0 – ≤ 25.1.4

  • vaadin · flow

    • affected 23.0.0 – ≤ 23.6.10
    • affected 24.0.0 – ≤ 24.9.17
    • affected 24.10.0 – ≤ 24.10.3
    • affected 25.0.0 – ≤ 25.0.11
    • affected 25.1.0 – ≤ 25.1.4

Affected packages

From reviewed advisories of the GitHub Advisory Database.

What to do

Solution: Users of affected versions should apply the following mitigation or upgrade.

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .