Vulnerabilities
Vulnerable Software

Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 9.6%
CVSS Severity
CVSS v3 Score 4.2
Products affected by CVE-2026-41839


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