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Fencer Vulns
low 1.6

CVE-2026-7860 json

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

published 2026-05-19 5 mo ago modified 2026-10-26 13 d ago also GHSA-j8mx-j73w-9mxw , EUVD-2026-30891

cvss
1.6
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits
0
none known

Summary

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

Patch / fix

  • maven com.vaadin:flow-plugins 23.6.11, 24.9.18, 24.10.4, 25.0.12, 25.1.5
  • maven com.vaadin:flow-maven-plugin 23.6.11, 24.9.18, 24.10.4, 25.0.12, 25.1.5
  • maven com.vaadin:flow-gradle-plugin 24.9.18, 24.10.4, 25.0.12, 25.1.5

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 1.6 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
CNA 4.0 1.6 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/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

Affected packages

ecosystem package affected fixed in
maven com.vaadin:flow-plugins
>=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
23.6.11
24.9.18
24.10.4
25.0.12
25.1.5
maven com.vaadin:flow-maven-plugin
>=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
23.6.11
24.9.18
24.10.4
25.0.12
25.1.5
maven com.vaadin:flow-gradle-plugin
>=24.0.0, <24.9.18
>=24.10.0, <24.10.4
>=25.0.0, <25.0.12
>=25.1.0, <25.1.5
24.9.18
24.10.4
25.0.12
25.1.5

Affected products

  • vaadin flow

Classification

Weakness
  • CWE-209 Generation of Error Message Containing Sensitive Information

References

Sources

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