Improper sanitization of path in default RouteNotFoundError view in Vaadin Flow Server versions 1.0.0 through 1.0.14, 1.1.0 prior to 2.0.0, 2.0.0 through 2.6.1, and 3.0.0 through 6.0.9 allows route enumeration.

Improper sanitization of path in default RouteNotFoundError view in Vaadin Flow Server versions 1.0.0 through 1.0.14, 1.1.0 prior to 2.0.0, 2.0.0 through 2.6.1, and 3.0.0 through 6.0.9 allows route enumeration.

CVE-2021-31412 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

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