CVE-2026-41839

A WebFlux application with a compromised subdomain (for example, compromised via cross-site scripting (XSS)) is vulnerable to an escalation attack exchanging a known session ID for that of an authenticated user. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.

Score

CVSS 3.1 4.2 Medium

Status

Analyzed - security@vmware.com

Published

2026-06-09

Last modified

2026-06-23

Weaknesses

CWE-384

Affected products

• Spring Framework (Spring)
• Spring Framework (Vmware)

References

• https://spring.io/security/cve-2026-41839