CVE-2021-31407

HIGH
Published Apr 23, 20215y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Apr 23, 2021 5y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-402
CWE-668

Affected Products 4

VendorProductVersionRange
vaadinflow*≥1.2.0  –  <2.4.8
vaadinflow*≥6.0.0  –  <6.0.2
vaadinvaadin*≥12.0.0  –  <14.4.10
vaadinvaadin19.0.0any

References 4

  • github.com https://github.com/vaadin/flow/pull/10229
    PatchThird Party Advisory
  • github.com https://github.com/vaadin/flow/pull/10269
    PatchThird Party Advisory
  • github.com https://github.com/vaadin/osgi/issues/50
    PatchThird Party Advisory
  • vaadin.com https://vaadin.com/security/cve-2021-31407
    Vendor Advisory

Remediation

  • github.com https://github.com/vaadin/flow/pull/10229
    PatchThird Party Advisory
  • github.com https://github.com/vaadin/flow/pull/10269
    PatchThird Party Advisory
  • github.com https://github.com/vaadin/osgi/issues/50
    PatchThird Party Advisory