Timing side channel vulnerability in endpoint request handler in Vaadin 15-19
Priority LOW 38CWE-208Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
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- Attack complexity
- —
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-208.
Summary
Non-constant-time comparison of CSRF tokens in endpoint request handler in `com.vaadin:flow-server` versions 3.0.0 through 5.0.3 (Vaadin 15.0.0 through 18.0.6), and com.vaadin:fusion-endpoint version 6.0.0 (Vaadin 19.0.0) allows attacker to guess a security token for Fusion endpoints via timing attack. - https://vaadin.com/security/cve-2021-31406
Why it matters now
Fix Fixed com.vaadin:vaadin-bom (Maven): 19.0.1, 18.0.7
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 |
|---|---|---|---|---|---|
| — | com.vaadin:vaadin-bom (Maven) | 19.0.0 to before 19.0.1 | 19.0.1 | Patch available | GHSA-9h6g-6mxg-vvp4 |
| — | com.vaadin:vaadin-bom (Maven) | 15.0.0 to before 18.0.7 | 18.0.7 | Patch available | GHSA-9h6g-6mxg-vvp4 |
- com.vaadin:vaadin-bom (Maven) Vendor— Affected 19.0.0 to before 19.0.1 Fixed in 19.0.1 Patch available GHSA-9h6g-6mxg-vvp4
- com.vaadin:vaadin-bom (Maven) Vendor— Affected 15.0.0 to before 18.0.7 Fixed in 18.0.7 Patch available GHSA-9h6g-6mxg-vvp4
Remediation
- Fix · GHSA-9h6g-6mxg-vvp4 com.vaadin:vaadin-bom (Maven) Fixed in 19.0.1 Advisory →
- Fix · GHSA-9h6g-6mxg-vvp4 com.vaadin:vaadin-bom (Maven) Fixed in 18.0.7 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-9h6g-6mxg-vvp4
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences