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TI-2021-11543 Aliases CVE-2021-31411GHSA-p826-8vhq-h439

Insecure temporary directory usage in frontend build functionality of Vaadin 14 and 15-19

Priority LOW 34CWE-379Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

Insecure temporary directory usage in frontend build functionality of com.vaadin:flow-server versions 2.0.9 through 2.5.2 (Vaadin 14.0.3 through Vaadin 14.5.2), 3.0 prior to 6.0 (Vaadin 15 prior to 19), and 6.0.0 through 6.0.5 (Vaadin 19.0.0 through 19.0.4) allows local users to inject malicious code into frontend resources during application rebuilds.

Why it matters now

EPSS 0.00231 14th percentileScored 2026-11-07
Fix Fixed com.vaadin:vaadin-bom (Maven): 14.5.3, 19.0.5

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
VaadinVaadin14.0.3 and later—No fix listedCNA
Vaadinflow-server2.0.9 and later—No fix listedCNA
—com.vaadin:vaadin-bom (Maven)14.0.3 to before 14.5.314.5.3Patch availableGHSA-p826-8vhq-h439
—com.vaadin:vaadin-bom (Maven)15.0.0 to before 19.0.519.0.5Patch availableGHSA-p826-8vhq-h439
  • Vaadin VendorVaadin Affected 14.0.3 and later Fixed in — No fix listed CNA
  • flow-server VendorVaadin Affected 2.0.9 and later Fixed in — No fix listed CNA
  • com.vaadin:vaadin-bom (Maven) Vendor— Affected 14.0.3 to before 14.5.3 Fixed in 14.5.3 Patch available GHSA-p826-8vhq-h439
  • com.vaadin:vaadin-bom (Maven) Vendor— Affected 15.0.0 to before 19.0.5 Fixed in 19.0.5 Patch available GHSA-p826-8vhq-h439

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:vaadin:flow:*:*:*:*:*:*:*:*2.0.9 to before 2.5.3; 3.0.0 – 5.0.0; 6.0.0 – 6.0.6VulnerableVaadin
cpe:2.3:a:vaadin:vaadin:*:*:*:*:*:*:*:*14.0.3 to before 14.5.3; 15.0.0 to before 19.0.5VulnerableVaadin
  • cpe:2.3:a:vaadin:flow:*:*:*:*:*:*:*:* Versions 2.0.9 to before 2.5.3; 3.0.0 – 5.0.0; 6.0.0 – 6.0.6 Vulnerable ·Vaadin
  • cpe:2.3:a:vaadin:vaadin:*:*:*:*:*:*:*:* Versions 14.0.3 to before 14.5.3; 15.0.0 to before 19.0.5 Vulnerable ·Vaadin

Remediation

  • Fix · GHSA-p826-8vhq-h439 com.vaadin:vaadin-bom (Maven) Fixed in 14.5.3 Advisory →
  • Fix · GHSA-p826-8vhq-h439 com.vaadin:vaadin-bom (Maven) Fixed in 19.0.5 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-31411
  2. 2026-10-03 Alias added: GHSA-p826-8vhq-h439

References

Patch 1

Advisory 2

Other 1

  • TI-2021-11539 Server classes and resources exposure in OSGi applications using Vaadin 12-14 and 19 CVSS 3.1HIGH 8.6
  • TI-2021-11537 Regular expression denial of service (ReDoS) in EmailField component in Vaadin 14 and 15-17 CVSS 3.1HIGH 7.5
  • TI-2020-18604 Directory traversal in development mode handler in Vaadin 14 and 15-17 CVSS 3.1HIGH 7.5
  • TI-2021-11540 Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19 CVSS 3.1HIGH 7.1
  • TI-2020-18602 Potential sensitive data exposure in applications using Vaadin 15 CVSS 3.1MEDIUM 6.5
  • TI-2019-15167 Reflected cross-site scripting in default RouteNotFoundError view in Vaadin 10 and 11-13 CVSS 3.1MEDIUM 6.1
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences