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CVE PROGRAM SOURCE RECORD4.2 Medium

CVE-2026-41839

Spring Framework Escalation via Session Fixation in WebFlux

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Status
Published
Published
Updated
Assigning organization
vmware

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Spring Spring Framework

Default version status: unaffected

  • 7.0.0 to < 7.0.7.1affected
  • 6.2.0 to < 6.2.18.1affected
  • 6.1.0 to < 6.1.28affected
  • 5.3.0 to < 5.3.49affected

References