Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19
Improper sanitization of path in default RouteNotFoundError view in com.vaadin:flow-server versions 1.0.0 through 1.0.14 (Vaadin 10.0.0 through 10.0.18), 1.1.0 prior to 2.0.0 (Vaadin 11 prior to 14), 2.0.0 through 2.6.1 (Vaadin 14.0.0 through 14.6.1), and 3.0.0 through 6.0.9 (Vaadin 15.0.0 through 19.0.8) allows network attacker to enumerate all available routes via crafted HTTP request when application is running in production mode and no custom handler for NotFoundException is provided.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | com.vaadin:flow-server | >= 1.0.0, < 1.0.15, >= 1.1.0, < 2.6.2, >= 3.0.0, < 6.0.10 | 1.0.15, 2.6.2, 6.0.10 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
-- Platform
- Java / Kotlin (Maven)
- Package
com.vaadin:flow-server- Disclosed
- 13.10.2021
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-fr26-qjc8-mvjx - CC BY 4.0
Vulnerability history: com.vaadin:flow-server
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 13
- First → latest
- 04.2021 03.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 8
- Low 4
Disclosures per year
- 2021: 10
- 2022: 0
- 2023: 2
- 2024: 0
- 2025: 0
- 2026: 1
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Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19 this entry
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