CVE-2026-41839
Medium
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.
SeverityMedium
CVSS4.2
Exploit probability—
Product
Vmware Spring Framework
PublishedJun 9, 2026
First seenJun 9, 2026
Weakness typeCWE-384CWE-384
How to fix
Update
- vmware spring_framework5.3.49, 6.1.28, 6.2.19, 7.0.8 or later
- org.springframework:spring-webflux7.0.8, 6.2.19 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vmware spring_framework | v < 5.3.49, 6.1.0 ≤ v < 6.1.28, 6.2.0 ≤ v < 6.2.19, 7.0.0 ≤ v < 7.0.8 | 5.3.49, 6.1.28, 6.2.19, 7.0.8 |
| org.springframework:spring-webfluxMaven | 7.0.0 ≤ v < 7.0.8, 6.2.0 ≤ v < 6.2.19, 6.1.0 ≤ v ≤ 6.1.21, v ≤ 5.3.39 | 7.0.8, 6.2.19 |
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