Medium severity4.2NVD Advisory· Published Jun 9, 2026· Updated Jun 9, 2026
CVE-2026-41839
CVE-2026-41839
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.springframework:spring-webfluxMaven | >= 7.0.0, < 7.0.8 | 7.0.8 |
org.springframework:spring-webfluxMaven | >= 6.2.0, < 6.2.19 | 6.2.19 |
org.springframework:spring-webfluxMaven | >= 6.1.0, <= 6.1.21 | — |
org.springframework:spring-webfluxMaven | <= 5.3.39 | — |
Affected products
3- Range: 7.0.0-7.0.7, 6.2.0-6.2.18, 6.1.0-6.1.27, 5.3.0-5.3.48
- osv-coords2 versions
< 1.5.0-r12+ 1 more
- (no CPE)range: < 1.5.0-r12
- (no CPE)range: < 1.5.0-r6
Patches
Vulnerability mechanics
References
9- github.com/advisories/GHSA-4hfh-6x8g-gwppghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-41839ghsaADVISORY
- github.com/spring-projects/spring-framework/commit/b8ddd2c690fe3f00bb5e3d9f913a37504aab49a0ghsaWEB
- github.com/spring-projects/spring-framework/commit/d72da90d3a562632e2b565113813f7b4a31f8717ghsaWEB
- github.com/spring-projects/spring-framework/issues/36742ghsaWEB
- github.com/spring-projects/spring-framework/issues/36743ghsaWEB
- github.com/spring-projects/spring-framework/releases/tag/v6.2.19ghsaWEB
- github.com/spring-projects/spring-framework/releases/tag/v7.0.8ghsaWEB
- spring.io/security/cve-2026-41839nvdWEB
News mentions
1- Spring Framework: 13 Vulnerabilities Disclosed on June 9, 2026Vypr Intelligence · Jun 9, 2026