Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- Security bypass
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-287.
Summary
`Authentication.logout()` helper in `com.vaadin:flow-client` versions 5.0.0 prior to 6.0.0 (Vaadin 18), and 6.0.0 through 6.0.4 (Vaadin 19.0.0 through 19.0.3) uses incorrect HTTP method, which, in combination with Spring Security CSRF protection, allows local attackers to access Fusion endpoints after the user attempted to log out. - https://vaadin.com/security/cve-2021-31408
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 |
|---|---|---|---|---|---|
| — | com.vaadin:flow-client (Maven) | 5.0.0 to before 6.0.5 | 6.0.5 | Patch available | GHSA-6hgr-2g6q-3rmc |
- com.vaadin:flow-client (Maven) Vendor— Affected 5.0.0 to before 6.0.5 Fixed in 6.0.5 Patch available GHSA-6hgr-2g6q-3rmc
Remediation
- Fix · GHSA-6hgr-2g6q-3rmc com.vaadin:flow-client (Maven) Fixed in 6.0.5 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-6hgr-2g6q-3rmc
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences