CVE-2026-7860: Flow plugins Vaadin Build Plugins Is Affected Vulnerability

LOW
Advisory Identifier: GHSA-j8mx-j73w-9mxw
Share
CWE-209
Published
Advisory Summary

CVE-2026-7860 is a LOW vaadin build plugins is affected vulnerability (CWE-209: Generation of Error Message Containing Sensitive Information) affecting Flow plugins libraries in the Maven ecosystem. The issue involves vaadin build plugins is affected by a possible information disclosure vulnerability. Remediation is available by upgrading affected packages to version 23.6.11, 24.9.18, 24.10.4, 25.0.12, 25.1.5.

CVE-2026-7860 at a Glance

CVE Identifier CVE-2026-7860
GHSA Identifier GHSA-j8mx-j73w-9mxw
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-209: Generation of Error Message Containing Sensitive Information
Affected Product Flow plugins
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-7860

To remediate this vulnerability, upgrade all affected Flow plugins dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

com.vaadin:flow-plugins fixed: 23.6.11 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-plugins</artifactId>
    <version>23.6.11</version>
</dependency>
com.vaadin:flow-plugins fixed: 24.9.18 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-plugins</artifactId>
    <version>24.9.18</version>
</dependency>
com.vaadin:flow-plugins fixed: 24.10.4 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-plugins</artifactId>
    <version>24.10.4</version>
</dependency>
com.vaadin:flow-plugins fixed: 25.0.12 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-plugins</artifactId>
    <version>25.0.12</version>
</dependency>
com.vaadin:flow-plugins fixed: 25.1.5 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-plugins</artifactId>
    <version>25.1.5</version>
</dependency>
com.vaadin:flow-maven-plugin fixed: 23.6.11 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-maven-plugin</artifactId>
    <version>23.6.11</version>
</dependency>
com.vaadin:flow-maven-plugin fixed: 24.9.18 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-maven-plugin</artifactId>
    <version>24.9.18</version>
</dependency>
com.vaadin:flow-maven-plugin fixed: 24.10.4 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-maven-plugin</artifactId>
    <version>24.10.4</version>
</dependency>
com.vaadin:flow-maven-plugin fixed: 25.0.12 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-maven-plugin</artifactId>
    <version>25.0.12</version>
</dependency>
com.vaadin:flow-maven-plugin fixed: 25.1.5 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-maven-plugin</artifactId>
    <version>25.1.5</version>
</dependency>
com.vaadin:flow-gradle-plugin fixed: 24.9.18 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-gradle-plugin</artifactId>
    <version>24.9.18</version>
</dependency>
com.vaadin:flow-gradle-plugin fixed: 24.10.4 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-gradle-plugin</artifactId>
    <version>24.10.4</version>
</dependency>
com.vaadin:flow-gradle-plugin fixed: 25.0.12 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-gradle-plugin</artifactId>
    <version>25.0.12</version>
</dependency>
com.vaadin:flow-gradle-plugin fixed: 25.1.5 
<dependency>
    <groupId>com.vaadin</groupId>
    <artifactId>flow-gradle-plugin</artifactId>
    <version>25.1.5</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=com.vaadin

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-7860, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.vaadin

Analyze the terminal output to locate any version of Flow plugins in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 23.6.11), your application is affected.

Note: The mvn dependency:tree -Dincludes=com.vaadin command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-209: Generation of Error Message Containing Sensitive Information, where the product generates an error message that includes sensitive information about its environment, users, or associated data. In Flow plugins, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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 | Mitigation | |---|---| | `Vaadin 23.0.0 - 23.6.10` | `Upgrade to 23.6.11` | | `Vaadin 24.0.0 - 24.9.17` | `Upgrade to 24.9.18` | | `Vaadin 24.10.0 - 24.10.3` | `Upgrade to 24.10.4` | | `Vaadin 25.0.0 - 25.0.11` | `Upgrade to 25.0.12` | | `Vaadin 25.1.0 - 25.1.4` | `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. | Maven coordinates | Vulnerable version | Fixed version | |---|---|---| | `com.vaadin:flow-plugin-base` | `23.0.0 - 23.6.10` | `≥ 23.6.11` | | `com.vaadin:flow-plugin-base` | `24.0.0 - 24.9.17` | `≥ 24.9.18` | | `com.vaadin:flow-plugin-base` | `24.0.0 - 24.10.3` | `≥ 24.10.4` | | `com.vaadin:flow-plugin-base` | `25.0.0 - 25.0.11` | `≥ 25.0.12` | | `com.vaadin:flow-plugin-base` | `25.1.0 - 25.1.4` | `≥ 25.1.5` | | `com.vaadin:flow-maven-plugin` | `23.0.0 - 23.6.10` | `≥ 23.6.11` | | `com.vaadin:flow-maven-plugin` | `24.0.0 - 24.9.17` | `≥ 24.9.18` | | `com.vaadin:flow-maven-plugin` | `24.0.0 - 24.10.3` | `≥ 24.10.4` | | `com.vaadin:flow-maven-plugin` | `25.0.0 - 25.0.11` | `≥ 25.0.12` | | `com.vaadin:flow-maven-plugin` | `25.1.0 - 25.1.4` | `≥ 25.1.5` | | `com.vaadin:flow-gradle-plugin` | `24.0.0 - 24.9.17` | `≥ 24.9.18` | | `com.vaadin:flow-gradle-plugin` | `24.0.0 - 24.10.3` | `≥ 24.10.4` | | `com.vaadin:flow-gradle-plugin` | `25.0.0 - 25.0.11` | `≥ 25.0.12` | | `com.vaadin:flow-gradle-plugin` | `25.1.0 - 25.1.4` | `≥ 25.1.5` |

CVE-2026-7860 Affected Flow plugins Versions

14 component(s)
Fixed Versions:
23.6.1124.9.1824.10.425.0.1225.1.5
Product / Package Ecosystem Affected Versions Fixed Version
com.vaadin:flow-plugins
maven/com.vaadin/flow-plugins
Maven
≥ 23.0.0
< 23.6.11
23.6.11
com.vaadin:flow-plugins
maven/com.vaadin/flow-plugins
Maven
≥ 24.0.0
< 24.9.18
24.9.18
com.vaadin:flow-plugins
maven/com.vaadin/flow-plugins
Maven
≥ 24.10.0
< 24.10.4
24.10.4
com.vaadin:flow-plugins
maven/com.vaadin/flow-plugins
Maven
≥ 25.0.0
< 25.0.12
25.0.12
com.vaadin:flow-plugins
maven/com.vaadin/flow-plugins
Maven
≥ 25.1.0
< 25.1.5
25.1.5
com.vaadin:flow-maven-plugin
maven/com.vaadin/flow-maven-plugin
Maven
≥ 23.0.0
< 23.6.11
23.6.11
com.vaadin:flow-maven-plugin
maven/com.vaadin/flow-maven-plugin
Maven
≥ 24.0.0
< 24.9.18
24.9.18
com.vaadin:flow-maven-plugin
maven/com.vaadin/flow-maven-plugin
Maven
≥ 24.10.0
< 24.10.4
24.10.4
com.vaadin:flow-maven-plugin
maven/com.vaadin/flow-maven-plugin
Maven
≥ 25.0.0
< 25.0.12
25.0.12
com.vaadin:flow-maven-plugin
maven/com.vaadin/flow-maven-plugin
Maven
≥ 25.1.0
< 25.1.5
25.1.5
com.vaadin:flow-gradle-plugin
maven/com.vaadin/flow-gradle-plugin
Maven
≥ 24.0.0
< 24.9.18
24.9.18
com.vaadin:flow-gradle-plugin
maven/com.vaadin/flow-gradle-plugin
Maven
≥ 24.10.0
< 24.10.4
24.10.4
com.vaadin:flow-gradle-plugin
maven/com.vaadin/flow-gradle-plugin
Maven
≥ 25.0.0
< 25.0.12
25.0.12
com.vaadin:flow-gradle-plugin
maven/com.vaadin/flow-gradle-plugin
Maven
≥ 25.1.0
< 25.1.5
25.1.5

References

NVD — CVE-2026-7860 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7860
Flow plugins Source Repository REPOSITORY
https://github.com/vaadin/flow/pull/24219
Flow plugins Source Repository REPOSITORY
https://github.com/vaadin/flow
Flow plugins Security Information SECURITY
https://vaadin.com/security/cve-2026-7860

Frequently Asked Questions

What is CVE-2026-7860?
CVE-2026-7860 is a security vulnerability in Flow plugins involving Vaadin Build Plugins is Affected by a Possible Information Disclosure Vulnerability under CWE-209: Generation of Error Message Containing Sensitive Information.
Which Flow plugins versions are affected?
Affected versions include releases prior to 23.6.11, 24.9.18, 24.10.4, 25.0.12, 25.1.5 across affected packages: com.vaadin:flow-plugins, com.vaadin:flow-maven-plugin, com.vaadin:flow-gradle-plugin.
What version fixes CVE-2026-7860?
Upgrading to 23.6.11, 24.9.18, 24.10.4, 25.0.12, 25.1.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is flow-plugins affected?
Yes, com.vaadin:flow-plugins is affected in releases prior to 23.6.11, 24.9.18, 24.10.4, 25.0.12, 25.1.5. Upgrade your dependency to 23.6.11, 24.9.18, 24.10.4, 25.0.12, 25.1.5 or later.
Is flow-maven-plugin affected?
Yes, com.vaadin:flow-maven-plugin is affected in releases prior to 23.6.11, 24.9.18, 24.10.4, 25.0.12, 25.1.5. Upgrade your dependency to 23.6.11, 24.9.18, 24.10.4, 25.0.12, 25.1.5 or later.
What CWE is associated with CVE-2026-7860?
CVE-2026-7860 is classified under CWE-209: Generation of Error Message Containing Sensitive Information (The product generates an error message that includes sensitive information about its environment, users, or associated data.).
How can I check Maven dependencies for CVE-2026-7860?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.vaadin'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-j8mx-j73w-9mxw",
  "modified" : "2026-06-04T18:38:34Z",
  "published" : "2026-05-19T12:31:42Z",
  "aliases" : [ "CVE-2026-7860" ],
  "summary" : "Vaadin Build Plugins is Affected by a Possible Information Disclosure Vulnerability",
  "details" : "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.\n\n\nUsers of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include:\n\n\n| Product version | Mitigation |\n|---|---|\n| `Vaadin 23.0.0 - 23.6.10` | `Upgrade to 23.6.11` |\n| `Vaadin 24.0.0 - 24.9.17` | `Upgrade to 24.9.18` |\n| `Vaadin 24.10.0 - 24.10.3` | `Upgrade to 24.10.4` |\n| `Vaadin 25.0.0 - 25.0.11` | `Upgrade to 25.0.12` |\n| `Vaadin 25.1.0 - 25.1.4` | `Upgrade to 25.1.5 or newer` |\n\nPlease 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.\n\n| Maven coordinates | Vulnerable version | Fixed version |\n|---|---|---|\n| `com.vaadin:flow-plugin-base` | `23.0.0 - 23.6.10` | `≥ 23.6.11` |\n| `com.vaadin:flow-plugin-base` | `24.0.0 - 24.9.17` | `≥ 24.9.18` |\n| `com.vaadin:flow-plugin-base` | `24.0.0 - 24.10.3` | `≥ 24.10.4` |\n| `com.vaadin:flow-plugin-base` | `25.0.0 - 25.0.11` | `≥ 25.0.12` |\n| `com.vaadin:flow-plugin-base` | `25.1.0 - 25.1.4` | `≥ 25.1.5` |\n| `com.vaadin:flow-maven-plugin` | `23.0.0 - 23.6.10` | `≥ 23.6.11` |\n| `com.vaadin:flow-maven-plugin` | `24.0.0 - 24.9.17` | `≥ 24.9.18` |\n| `com.vaadin:flow-maven-plugin` | `24.0.0 - 24.10.3` | `≥ 24.10.4` |\n| `com.vaadin:flow-maven-plugin` | `25.0.0 - 25.0.11` | `≥ 25.0.12` |\n| `com.vaadin:flow-maven-plugin` | `25.1.0 - 25.1.4` | `≥ 25.1.5` |\n| `com.vaadin:flow-gradle-plugin` | `24.0.0 - 24.9.17` | `≥ 24.9.18` |\n| `com.vaadin:flow-gradle-plugin` | `24.0.0 - 24.10.3` | `≥ 24.10.4` |\n| `com.vaadin:flow-gradle-plugin` | `25.0.0 - 25.0.11` | `≥ 25.0.12` |\n| `com.vaadin:flow-gradle-plugin` | `25.1.0 - 25.1.4` | `≥ 25.1.5` |",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "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" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-plugins"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "23.0.0"
      }, {
        "fixed" : "23.6.11"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 23.6.10"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-plugins"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "24.0.0"
      }, {
        "fixed" : "24.9.18"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 24.9.17"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-plugins"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "24.10.0"
      }, {
        "fixed" : "24.10.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-plugins"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "25.0.0"
      }, {
        "fixed" : "25.0.12"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 25.0.11"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-plugins"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "25.1.0"
      }, {
        "fixed" : "25.1.5"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-maven-plugin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "23.0.0"
      }, {
        "fixed" : "23.6.11"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 23.6.10"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-maven-plugin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "24.0.0"
      }, {
        "fixed" : "24.9.18"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 24.9.17"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-maven-plugin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "24.10.0"
      }, {
        "fixed" : "24.10.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-maven-plugin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "25.0.0"
      }, {
        "fixed" : "25.0.12"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 25.0.11"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-maven-plugin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "25.1.0"
      }, {
        "fixed" : "25.1.5"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-gradle-plugin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "24.0.0"
      }, {
        "fixed" : "24.9.18"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 24.9.17"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-gradle-plugin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "24.10.0"
      }, {
        "fixed" : "24.10.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-gradle-plugin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "25.0.0"
      }, {
        "fixed" : "25.0.12"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 25.0.11"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.vaadin:flow-gradle-plugin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "25.1.0"
      }, {
        "fixed" : "25.1.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-7860"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vaadin/flow/pull/24219"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/vaadin/flow"
  }, {
    "type" : "WEB",
    "url" : "https://vaadin.com/security/cve-2026-7860"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-209" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-04T18:38:34Z",
    "nvd_published_at" : "2026-05-19T12:16:19Z"
  }
}