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NVD / CVE Program· CNA Vaadin

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

Noroxi assessment

Priority: Monitor (action score 6/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.11% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. Special conditions such as timing or configuration are required.
  • Fixed version: com.vaadin:flow-gradle-plugin (Maven) 24.9.18, 24.10.4, 25.0.12; com.vaadin:flow-maven-plugin (Maven) 23.6.11, 24.9.18, 24.10.4; com.vaadin:flow-plugins (Maven) 23.6.11, 24.9.18, 24.10.4.

Low priority for now. Upgrade to com.vaadin:flow-gradle-plugin (Maven) 24.9.18, 24.10.4, 25.0.12; com.vaadin:flow-maven-plugin (Maven) 23.6.11, 24.9.18, 24.10.4; com.vaadin:flow-plugins (Maven) 23.6.11, 24.9.18, 24.10.4 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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

LowCVSS 1.6 · v4.0—No exploit Fix available
Published
May 19, 2026
Updated
Oct 26, 2026
EPSS
0.1% · 1th percentile

Report tools

JSON

Action score

6

Monitor

Low priority for now.

CVSS
6 / 40 · 1.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Vaadin
1.6
NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-7860

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Vaadin). Independent of NVD's CPE analysis and usually ahead of it.

  • vaadin flow

    • 23.0.0 and later · up to and including 23.6.10affected · maven
    • 24.0.0 and later · up to and including 24.9.17affected · maven
    • 24.10.0 and later · up to and including 24.10.3affected · maven
    • 25.0.0 and later · up to and including 25.0.11affected · maven
    • 25.1.0 and later · up to and including 25.1.4affected · maven
    • 23.0.0 and later · up to and including 23.6.10affected · maven
    • 24.0.0 and later · up to and including 24.9.17affected · maven
    • 24.10.0 and later · up to and including 24.10.3affected · maven
    • 25.0.0 and later · up to and including 25.0.11affected · maven
    • 25.1.0 and later · up to and including 25.1.4affected · maven

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Mavencom.vaadin:flow-gradle-pluginfrom 24.0.0 · before 24.9.1824.9.18
Mavencom.vaadin:flow-gradle-pluginfrom 24.10.0 · before 24.10.424.10.4
Mavencom.vaadin:flow-gradle-pluginfrom 25.0.0 · before 25.0.1225.0.12
Mavencom.vaadin:flow-gradle-pluginfrom 25.1.0 · before 25.1.525.1.5
Mavencom.vaadin:flow-maven-pluginfrom 23.0.0 · before 23.6.1123.6.11
Mavencom.vaadin:flow-maven-pluginfrom 24.0.0 · before 24.9.1824.9.18
Mavencom.vaadin:flow-maven-pluginfrom 24.10.0 · before 24.10.424.10.4
Mavencom.vaadin:flow-maven-pluginfrom 25.0.0 · before 25.0.1225.0.12
Mavencom.vaadin:flow-maven-pluginfrom 25.1.0 · before 25.1.525.1.5
Mavencom.vaadin:flow-pluginsfrom 23.0.0 · before 23.6.1123.6.11
Mavencom.vaadin:flow-pluginsfrom 24.0.0 · before 24.9.1824.9.18
Mavencom.vaadin:flow-pluginsfrom 24.10.0 · before 24.10.424.10.4
Mavencom.vaadin:flow-pluginsfrom 25.0.0 · before 25.0.1225.0.12
Mavencom.vaadin:flow-pluginsfrom 25.1.0 · before 25.1.525.1.5

Same product

vaadin: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-31411Insecure temporary directory usage in frontend build functionality of Vaadin 14 and 15-19
    31Monitor
  • CVE-2021-31407Server classes and resources exposure in OSGi applications using Vaadin 12-14 and 19
    31Monitor
  • CVE-2021-31405Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17
    30Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2021-31406Apr 23, 2021 · Timing side channel vulnerability in endpoint request handler in Vaadin 15-19
    10Monitor
  • ← EarlierCVE-2021-31408Apr 23, 2021 · Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19
    28Monitor
  • ← EarlierCVE-2021-31412Jun 24, 2021 · Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Maven:com.vaadin:flow-gradle-plugin24.10.4Package registry (OSV)
Maven:com.vaadin:flow-gradle-plugin24.9.18Package registry (OSV)
Maven:com.vaadin:flow-gradle-plugin25.0.12Package registry (OSV)
Maven:com.vaadin:flow-gradle-plugin25.1.5Package registry (OSV)
Maven:com.vaadin:flow-maven-plugin23.6.11Package registry (OSV)
Maven:com.vaadin:flow-maven-plugin24.10.4Package registry (OSV)
Maven:com.vaadin:flow-maven-plugin24.9.18Package registry (OSV)
Maven:com.vaadin:flow-maven-plugin25.0.12Package registry (OSV)
Maven:com.vaadin:flow-maven-plugin25.1.5Package registry (OSV)
Maven:com.vaadin:flow-plugins23.6.11Package registry (OSV)
Maven:com.vaadin:flow-plugins24.10.4Package registry (OSV)
Maven:com.vaadin:flow-plugins24.9.18Package registry (OSV)
Maven:com.vaadin:flow-plugins25.0.12Package registry (OSV)
Maven:com.vaadin:flow-plugins25.1.5Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability
Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
P
Scope
N

Weakness class (CWE)

CWE-209 · Generation of Error Message Containing Sensitive Information

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/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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records