CVE-2021-31407

moderate-risk
Published 2021-04-23

Vulnerability in OSGi integration in com.vaadin:flow-server versions 1.2.0 through 2.4.7 (Vaadin 12.0.0 through 14.4.9), and 6.0.0 through 6.0.1 (Vaadin 19.0.0) allows attacker to access application classes and resources on the server via crafted HTTP request.

Do I need to act?

~
1.8% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.6/10 High
NETWORK / LOW complexity

Affected Products (3)

Flow

Affected Vendors

Vaadin

References (8)

Patch https://github.com/vaadin/flow/pull/10229
Patch https://github.com/vaadin/flow/pull/10269
Patch https://github.com/vaadin/osgi/issues/50
Vendor Advisory https://vaadin.com/security/cve-2021-31407
Patch https://github.com/vaadin/flow/pull/10229
Patch https://github.com/vaadin/flow/pull/10269
Patch https://github.com/vaadin/osgi/issues/50
Vendor Advisory https://vaadin.com/security/cve-2021-31407
43
/ 100
moderate-risk
Severity 29/34 · Critical
Exploitability 5/34 · Minimal
Exposure 9/34 · Low