medium4.2
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…
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.springframework:spring-webflux | >= 7.0.0, <= 7.0.7 | 7.0.8 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Vmware | Spring Framework | before 5.3.49 from 6.1.0 before 6.1.28 from 6.2.0 before 6.2.19 from 7.0.0 before 7.0.8 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-4hfh-6x8g-gwpp
- https://nvd.nist.gov/vuln/detail/CVE-2026-41839
- https://spring.io/security/cve-2026-41839
- https://github.com/spring-projects/spring-framework/issues/36742
- https://github.com/spring-projects/spring-framework/issues/36743
- https://github.com/spring-projects/spring-framework/commit/b8ddd2c690fe3f00bb5e3d9f913a37504aab49a0
- https://github.com/spring-projects/spring-framework/commit/d72da90d3a562632e2b565113813f7b4a31f8717
- https://github.com/spring-projects/spring-framework/releases/tag/v6.2.19
- https://github.com/spring-projects/spring-framework/releases/tag/v7.0.8