Spring Framework Escalation via Session Fixation in WebFlux_CVE-2026-41839

4.2 / 10

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

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.

Basic Information

ID CVE-2026-41839

Source vmware

Published Jun 9, 2026 at 03:49

Affected Product

Vendor Spring

Product Spring Framework

Version 7.0.0

Affected Versions Spring Spring Framework 7.0.0
Spring Spring Framework 6.2.0
Spring Spring Framework 6.1.0
Spring Spring Framework 5.3.0

CWE Classification

CWE-384

References

spring.io /security/cve-2026-41839

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    "published": "2026-06-09T03:49:52.381Z",
    "modified": "2026-06-09T03:49:52.381Z",
    "type": "cve",
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