Possible route enumeration in production mode via RouteNotFoundError view in Vaadin 10, 11-14, and 15-19
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-668 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Vaadin | Vaadin | 10.0.0 and later; up to 10.0.18; 11.0.0 and later; before 14.0.0; 14.0.0 and later; up to 14.6.1; 15.0.0 and later; up to 19.0.8 | — | No fix listed | CNA |
| Vaadin | flow-server | 1.0.0 and later; up to 1.0.14; 1.1.0 and later; before 2.0.0; 2.0.0 and later; up to 2.6.1; 3.0.0 and later; up to 6.0.9 | — | No fix listed | CNA |
| — | com.vaadin:vaadin-bom (Maven) | 10.0.0 to before 10.0.19 | 10.0.19 | Patch available | GHSA-qrg9-f472-qwfm |
| — | com.vaadin:vaadin-bom (Maven) | 11.0.0 to before 14.6.2 | 14.6.2 | Patch available | GHSA-qrg9-f472-qwfm |
| — | com.vaadin:vaadin-bom (Maven) | 15.0.0 to before 19.0.9 | 19.0.9 | Patch available | GHSA-qrg9-f472-qwfm |
- Vaadin VendorVaadin Affected 10.0.0 and later; up to 10.0.18; 11.0.0 and later; before 14.0.0; 14.0.0 and later; up to 14.6.1; 15.0.0 and later; up to 19.0.8 Fixed in — No fix listed CNA
- flow-server VendorVaadin Affected 1.0.0 and later; up to 1.0.14; 1.1.0 and later; before 2.0.0; 2.0.0 and later; up to 2.6.1; 3.0.0 and later; up to 6.0.9 Fixed in — No fix listed CNA
- com.vaadin:vaadin-bom (Maven) Vendor— Affected 10.0.0 to before 10.0.19 Fixed in 10.0.19 Patch available GHSA-qrg9-f472-qwfm
- com.vaadin:vaadin-bom (Maven) Vendor— Affected 11.0.0 to before 14.6.2 Fixed in 14.6.2 Patch available GHSA-qrg9-f472-qwfm
- com.vaadin:vaadin-bom (Maven) Vendor— Affected 15.0.0 to before 19.0.9 Fixed in 19.0.9 Patch available GHSA-qrg9-f472-qwfm
CPE configurations NVD · 2
Remediation
- Fix · GHSA-qrg9-f472-qwfm com.vaadin:vaadin-bom (Maven) Fixed in 10.0.19 Advisory →
- Fix · GHSA-qrg9-f472-qwfm com.vaadin:vaadin-bom (Maven) Fixed in 14.6.2 Advisory →
- Fix · GHSA-qrg9-f472-qwfm com.vaadin:vaadin-bom (Maven) Fixed in 19.0.9 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31412
- 2026-10-03 Alias added: GHSA-qrg9-f472-qwfm
References
More Vaadin Flow vulnerabilities
- TI-2021-11539 Server classes and resources exposure in OSGi applications using Vaadin 12-14 and 19 CVSS 3.1HIGH 8.6
- TI-2021-11537 Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17 CVSS 3.1HIGH 7.5
- TI-2020-18604 Directory traversal in development mode handler in Vaadin 14 and 15-17 CVSS 3.1HIGH 7.5
- TI-2021-11543 Insecure temporary directory usage in frontend build functionality of Vaadin 14 and 15-19 CVSS 3.1HIGH 7.8
- TI-2021-11540 Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19 CVSS 3.1HIGH 7.1
- TI-2020-18602 Potential sensitive data exposure in applications using Vaadin 15 CVSS 3.1MEDIUM 6.5
Sources
- CVE-2021-31412 · CVE Program
- CVE-2021-31412 · NVD
- FIRST EPSS
- GHSA-qrg9-f472-qwfm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences