PatchSiren cyber security CVE debrief
CVE-2026-7860 vaadin CVE debrief
A possible information disclosure vulnerability exists in the Vaadin Maven plugin and Vaadin Gradle plugin. This issue exposes environment variables in build logs when the frontend build process fails with a non-zero status. The build environment may contain credentials as secrets, which can be exposed in clear text in CI logs and archived build artifacts if the frontend build fails.
- Vendor
- vaadin
- Product
- flow
- CVSS
- LOW 1.6
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-19
- Original CVE updated
- 2026-09-14
- Advisory published
- 2026-05-19
- Advisory updated
- 2026-09-14
Who should care
Defenders responsible for CI/CD pipelines, developers using Vaadin plugins, and teams managing build artifacts should assess exposure and prioritize remediation. They should review build logs and archived artifacts for exposure of sensitive information and verify whether affected product deployments exist in managed environments. Security teams and vulnerability management teams should also be aware of the potential risks and take necessary actions to
Why it matters
CVE-2026-7860 is a possible information disclosure vulnerability in Vaadin plugins. Defenders should prioritize upgrading to fixed versions or applying mitigations to prevent potential information disclosure. Review build logs and archived artifacts for exposure of sensitive information.
- Potential exposure of sensitive information in build logs and artifacts
- Need to verify build logs and artifacts for sensitive information exposure
- Prioritize upgrading to fixed versions or applying mitigations
- Review CI/CD pipeline configurations and build artifact storage
Technical summary
The Vaadin Maven plugin and Vaadin Gradle plugin are vulnerable to information disclosure. When the frontend build process exits with a non-zero status, the full set of environment variables is exposed in build logs. This can lead to the exposure of credentials supplied as secrets in clear text in CI logs and archived build artifacts. The vulnerability exists in versions 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, and Vaadin 25.1.0 - 25.1.4. Defenders should prioritize upgrading to fixed versions or applying mitigations to prevent potential information disclosure.
Defensive priority
Defenders should prioritize upgrading to fixed versions or applying mitigations to prevent potential information disclosure. Review build logs and archived artifacts for exposure of sensitive information.
Recommended defensive actions
- Upgrade to Vaadin version 23.6.10 or newer
- Upgrade to Vaadin version 24.9.17 or newer
- Upgrade to Vaadin version 24.10.4 or newer
- Upgrade to Vaadin version 25.0.11 or newer
- Upgrade to Vaadin version 25.1.5 or newer
Evidence notes
The CVE record and NVD entry provide details on the vulnerability, affected versions, and fixed versions. Vaadin has provided information on the issue and mitigation steps. The vulnerability exists in the Vaadin Maven plugin and Vaadin Gradle plugin, exposing environment variables in build logs when the frontend build process fails. This can lead to the exposure of credentials supplied as secrets in clear text in CI logs and archived build artifacts. To verify, defenders should review build logs and archived artifacts for exposure of
Sources and references
Verified primary and authoritative sources
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CVE-2026-7860 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-7860
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-7860 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-7860
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Source reference
Unverified legacy reference
URL: https://github.com/vaadin/flow/pull/24219
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Source reference
Unverified legacy reference
URL: https://vaadin.com/security/cve-2026-7860
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.