CVE-2026-2742mediumCWE-284

CVE-2026-2742: fallo de gravedad media en vaadin

Unauthorized session creation via reserved framework path access

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear Vaadin+ Monitorear flow

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 5.3epss 0.4%
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 reserved framework paths. Accessing the /VAADIN endpoint without a trailing slash bypasses security filters, and allowing unauthenticated users to trigger framework initialization and create sessions without proper authorization. Users of affected versions using Spring Security should upgrade as follows: 14.0.0-14.14.0 upgrade to 14.14.1, 23.0.0-23.6.6 to 23.6.7, 24.0.0 - 24.9.7 to 24.9.8, and 25.0.0-25.0.1 upgrade to 25.0.2 or newer. Please note that Vaadin versions 10-13 and 15-22 are no longer supported and you should update either to the latest 14, 23, 24, 25 version.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/S:N/AU:Y/R:A/V:D/RE:L/U:Amber
Productos afectados
vaadin · flowvaadin · vaadin
CVEs relacionadas — vaadin

En el mismo producto, de las más peligrosas a las menos.

CVE-2023-25499MEDIUMPossible information disclosure in non visible componentsEPSS 0.6%CVE-2026-107588HIGHMultiple Vulnerabilities in the Highcharts Library Bundled with Vaadin ChartsEPSS 0.5%CVE-2023-25500LOWCVE-2023-25500EPSS 0.5%CVE-2026-91860MEDIUMPrototype Pollution in Vaadin Charts and Component Base via Unfiltered Deep MergeEPSS 0.5%CVE-2025-9467MEDIUMPossibility to bypass file upload validation on the server-sideEPSS 0.4%CVE-2026-2741LOWZip Slip Path Traversal on Node UnpackEPSS 0.4%