Technology · Maven
com.vaadin:flow-server (Maven) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 13 vulnerabilities in com.vaadin:flow-server (Maven): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-2742, was published on 10 March 2026.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About com.vaadin:flow-server (Maven)
Vaadin Flow server-side framework for building web applications.
Latest com.vaadin:flow-server (Maven) vulnerabilities
- CVE-2026-2742: Vaadin Vulnerable to Authentication Bypass When Accessing the /VAADIN Endpoint Without a Trailing SlashmediumCVSS 4EPSS 0.5%
- CVE-2023-25499: Vaadin vulnerable to possible information disclosure in non visible components.lowCVSS 3.1EPSS 0.6%
- CVE-2023-25500: Vaadin vulnerable to possible information disclosure of class and method names in RPC responselowCVSS 3.1EPSS 0.5%
- Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19lowCVSS 3.1
- Reflected cross-site scripting in development mode handler in VaadinlowCVSS 3.1
- Insecure temporary directory usage in frontend build functionality of Vaadin 14 and 15-19lowCVSS 3.1
- CVE-2018-25007: Unauthorized client-side property update in UIDL request handler in Vaadin 10 and 11lowCVSS 3.1EPSS 0.6%
- CVE-2019-25027: Reflected cross-site scripting in default RouteNotFoundError view in Vaadin 10 and 11-13lowCVSS 3.1EPSS 0.7%
- CVE-2020-36319: Potential sensitive data exposure in applications using Vaadin 15lowCVSS 3.1EPSS 1.0%
- CVE-2020-36321: Directory traversal in development mode handler in Vaadin 14 and 15-17lowCVSS 3.1EPSS 1.2%
- CVE-2021-31404: Timing side channel vulnerability in UIDL request handler in Vaadin 10, 11-14, and 15-18lowCVSS 3.1EPSS 0.2%
- CVE-2021-31407: OSGi applications using Vaadin 12-14 and 19 vulnerable to server classes and resources exposurelowCVSS 3.1EPSS 2.4%
- CVE-2021-31406: Timing side channel vulnerability in endpoint request handler in Vaadin 15-19lowCVSS 3.1EPSS 0.2%
Most severe com.vaadin:flow-server (Maven) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-2742: Vaadin Vulnerable to Authentication Bypass When Accessing the /VAADIN Endpoint Without a Trailing SlashmediumCVSS 4EPSS 0.5%
- CVE-2021-31407: OSGi applications using Vaadin 12-14 and 19 vulnerable to server classes and resources exposurelowCVSS 3.1EPSS 2.4%
- CVE-2020-36321: Directory traversal in development mode handler in Vaadin 14 and 15-17lowCVSS 3.1EPSS 1.2%
- CVE-2020-36319: Potential sensitive data exposure in applications using Vaadin 15lowCVSS 3.1EPSS 1.0%
- CVE-2019-25027: Reflected cross-site scripting in default RouteNotFoundError view in Vaadin 10 and 11-13lowCVSS 3.1EPSS 0.7%
- CVE-2023-25499: Vaadin vulnerable to possible information disclosure in non visible components.lowCVSS 3.1EPSS 0.6%
- CVE-2018-25007: Unauthorized client-side property update in UIDL request handler in Vaadin 10 and 11lowCVSS 3.1EPSS 0.6%
- CVE-2023-25500: Vaadin vulnerable to possible information disclosure of class and method names in RPC responselowCVSS 3.1EPSS 0.5%
- CVE-2021-31404: Timing side channel vulnerability in UIDL request handler in Vaadin 10, 11-14, and 15-18lowCVSS 3.1EPSS 0.2%
- CVE-2021-31406: Timing side channel vulnerability in endpoint request handler in Vaadin 15-19lowCVSS 3.1EPSS 0.2%
Vulnerabilities per week
Nothing was published in the last eight weeks. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
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A live badge for a README, a status page or an internal wiki: how many com.vaadin:flow-server (Maven) vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/com-vaadin-flow-server)<a href="https://junglewise.ai/threats/technologies/com-vaadin-flow-server"><img src="https://junglewise.ai/threats/technologies/com-vaadin-flow-server/badge.svg" alt="com.vaadin:flow-server (Maven) vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/com-vaadin-flow-server.json, and this page as text at https://junglewise.ai/threats/technologies/com-vaadin-flow-server.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "com.vaadin:flow-server (Maven) vulnerabilities", https://junglewise.ai/threats/technologies/com-vaadin-flow-server, 9 November 2026.