What is CVE-2023-25500?

CVE-2023-25500 is a low-severity security vulnerability in com.vaadin:flow-server (maven), affecting versions >= 1.0.0, < 1.0.21. It is fixed in 1.0.21, 2.9.3, 9.1.2, 23.3.13, 24.0.9, 24.1.0, 10.0.24, 14.10.2, 22.1.0, 23.3.14, 24.0.7.

How severe is CVE-2023-25500?

CVE-2023-25500 has a CVSS score of 3.5 (Low). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Which packages are affected by CVE-2023-25500?

com.vaadin:flow-server (maven) versions >= 1.0.0, = 10.0.0, < 10.0.24.

Is CVE-2023-25500 exploitable, and should I be worried?

Whether CVE-2023-25500 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether CVE-2023-25500 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

CVE-2023-25500 in com.vaadin:flow-server

Q: How severe is CVE-2023-25500?

CVE-2023-25500 has a CVSS score of 3.5 (Low). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Q: Which packages are affected by CVE-2023-25500?

com.vaadin:flow-server (maven) versions >= 1.0.0, = 10.0.0, < 10.0.24.

Q: Is there a fix for CVE-2023-25500?

Yes. CVE-2023-25500 is fixed in 1.0.21, 2.9.3, 9.1.2, 23.3.13, 24.0.9, 24.1.0, 10.0.24, 14.10.2, 22.1.0, 23.3.14, 24.0.7. Upgrade to this version or later.

Q: Is CVE-2023-25500 exploitable, and should I be worried?

Whether CVE-2023-25500 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether CVE-2023-25500 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix CVE-2023-25500?

Upgrade: com.vaadin:flow-server to 1.0.21 or later, com.vaadin:flow-server to 2.9.3 or later, com.vaadin:flow-server to 9.1.2 or later, com.vaadin:flow-server to 23.3.13 or later, com.vaadin:flow-server to 24.0.9 or later, com.vaadin:flow-server to 24.1.0 or later, com.vaadin:vaadin to 10.0.24 or later, com.vaadin:vaadin to 14.10.2 or later, com.vaadin:vaadin to 22.1.0 or later, com.vaadin:vaadin to 23.3.14 or later, com.vaadin:vaadin to 24.0.7 or later, com.vaadin:vaadin to 24.1.0 or later.

Summary

Vaadin vulnerable to possible information disclosure of class and method names in RPC response

Description

Possible information disclosure in Vaadin 10.0.0 to 10.0.23, 11.0.0 to 14.10.1, 15.0.0 to 22.0.28, 23.0.0 to 23.3.13, 24.0.0 to 24.0.6, 24.1.0.alpha1 to 24.1.0.rc2, resulting in potential information disclosure of class and method names in RPC responses by sending modified requests.

https://vaadin.com/security/cve-2023-25500

Impact

CVE-2023-25500 has a CVSS score of 3.5 (Low). The vector is network-reachable, low privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1.0.21, 2.9.3, 9.1.2, 23.3.13, 24.0.9, 24.1.0, 10.0.24, 14.10.2, 22.1.0, 23.3.14, 24.0.7); upgrading removes the vulnerable code path.

Affected versions

com.vaadin:flow-server (>= 1.0.0, < 1.0.21) com.vaadin:flow-server (>= 1.1.0, < 2.9.3) com.vaadin:flow-server (>= 3.0.0, < 9.1.2) com.vaadin:flow-server (>= 23.0.0, < 23.3.13) com.vaadin:flow-server (>= 24.0.0, < 24.0.9) com.vaadin:flow-server (>= 24.1.alpha1, < 24.1.0) com.vaadin:vaadin (>= 10.0.0, < 10.0.24) com.vaadin:vaadin (>= 11.0.0, < 14.10.2) com.vaadin:vaadin (>= 15.0.0, < 22.1.0) com.vaadin:vaadin (>= 23.0.0, < 23.3.14) com.vaadin:vaadin (>= 24.0.0, < 24.0.7) com.vaadin:vaadin (>= 24.1.0.alpha1, < 24.1.0)

Security releases

com.vaadin:flow-server → 1.0.21 (maven) com.vaadin:flow-server → 2.9.3 (maven) com.vaadin:flow-server → 9.1.2 (maven) com.vaadin:flow-server → 23.3.13 (maven) com.vaadin:flow-server → 24.0.9 (maven) com.vaadin:flow-server → 24.1.0 (maven) com.vaadin:vaadin → 10.0.24 (maven) com.vaadin:vaadin → 14.10.2 (maven) com.vaadin:vaadin → 22.1.0 (maven) com.vaadin:vaadin → 23.3.14 (maven) com.vaadin:vaadin → 24.0.7 (maven) com.vaadin:vaadin → 24.1.0 (maven)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Upgrade the following packages to resolve this vulnerability:

com.vaadin:flow-server to 1.0.21 or later; com.vaadin:flow-server to 2.9.3 or later; com.vaadin:flow-server to 9.1.2 or later; com.vaadin:flow-server to 23.3.13 or later; com.vaadin:flow-server to 24.0.9 or later; com.vaadin:flow-server to 24.1.0 or later; com.vaadin:vaadin to 10.0.24 or later; com.vaadin:vaadin to 14.10.2 or later; com.vaadin:vaadin to 22.1.0 or later; com.vaadin:vaadin to 23.3.14 or later; com.vaadin:vaadin to 24.0.7 or later; com.vaadin:vaadin to 24.1.0 or later

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is CVE-2023-25500? CVE-2023-25500 is a low-severity security vulnerability in com.vaadin:flow-server (maven), affecting versions >= 1.0.0, < 1.0.21. It is fixed in 1.0.21, 2.9.3, 9.1.2, 23.3.13, 24.0.9, 24.1.0, 10.0.24, 14.10.2, 22.1.0, 23.3.14, 24.0.7.
How severe is CVE-2023-25500? CVE-2023-25500 has a CVSS score of 3.5 (Low). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
Which packages are affected by CVE-2023-25500?
- com.vaadin:flow-server (maven) (versions >= 1.0.0, < 1.0.21)
- com.vaadin:vaadin (maven) (versions >= 10.0.0, < 10.0.24)
Is there a fix for CVE-2023-25500? Yes. CVE-2023-25500 is fixed in 1.0.21, 2.9.3, 9.1.2, 23.3.13, 24.0.9, 24.1.0, 10.0.24, 14.10.2, 22.1.0, 23.3.14, 24.0.7. Upgrade to this version or later.
Is CVE-2023-25500 exploitable, and should I be worried? Whether CVE-2023-25500 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether CVE-2023-25500 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix CVE-2023-25500?
- Upgrade com.vaadin:flow-server to 1.0.21 or later
- Upgrade com.vaadin:flow-server to 2.9.3 or later
- Upgrade com.vaadin:flow-server to 9.1.2 or later
- Upgrade com.vaadin:flow-server to 23.3.13 or later
- Upgrade com.vaadin:flow-server to 24.0.9 or later
- Upgrade com.vaadin:flow-server to 24.1.0 or later
- Upgrade com.vaadin:vaadin to 10.0.24 or later
- Upgrade com.vaadin:vaadin to 14.10.2 or later
- Upgrade com.vaadin:vaadin to 22.1.0 or later
- Upgrade com.vaadin:vaadin to 23.3.14 or later
- Upgrade com.vaadin:vaadin to 24.0.7 or later
- Upgrade com.vaadin:vaadin to 24.1.0 or later

Other vulnerabilities in com.vaadin:flow-server

CVE-IDSeverityPackage summary

CVE-2026-2742Mediumcom.vaadin:flow-server: Vaadin Vulnerable to Authentication Bypass When Accessing the /VAADIN Endpoint Without a Trailing Slash CVE-2023-25499Mediumcom.vaadin:vaadin: Vaadin vulnerable to possible information disclosure in non visible components.GHSA-FR26-QJC8-MVJXMediumcom.vaadin:flow-server: Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19 GHSA-8VFW-V2JV-9HWCLowcom.vaadin:flow-server: Reflected cross-site scripting in development mode handler in Vaadin GHSA-C57F-4VP2-JQHMMediumcom.vaadin:flow-server: Insecure temporary directory usage in frontend build functionality of Vaadin 14 and 15-19