Vulnerability in Vaadin Flow
CVE-2026-2742
An authentication bypass vulnerability exists in Vaadin 14.0.0 through 14.14.0, 23.0.0 through 23.6.6, 24.0.0 through 24.9.7 and 25.0.0 through 25.0.1, applications using Spring Security due to inconsistent path pattern matching of reserve…
EPSS: 0.004 (59.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Vaadin Flow — versions 1.0.0, 3.0.0, 24.0.0
- Vaadin — versions 10.0.0, 15.0.0, 24.0.0
Weakness classification (CWE)
References
- security@vaadin.com (Vendor Advisory)
- security@vaadin.com (Patch, Issue Tracking)
- security@vaadin.com (Patch, Issue Tracking)
- security@vaadin.com (Patch, Issue Tracking)
- security@vaadin.com (Patch, Issue Tracking)
- security@vaadin.com (Patch, Issue Tracking)
- security@vaadin.com (Patch, Issue Tracking)
Frequently asked questions
- What is CVE-2026-2742?
- CVE-2026-2742 is a medium-severity vulnerability in Vaadin Flow, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-03-10.
- How severe is CVE-2026-2742?
- Medium severity. CVSS v3 base score is 5.3 out of 10.