CVE-2026-41847
Spring Framework Security Filter Bypass in WebFlux Kotlin Router DSL
MEDIUM 4.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.17 % · percentile 6 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- vmware
- NVD status
- Analyzed
Description
Spring WebFlux applications may be vulnerable to a security bypass when using the Kotlin Router DSL. Affected versions: Spring Framework 5.3.0 through 5.3.48.
Weaknesses (CWE)
- CWE-284 — Improper Access Control
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | vmware |
| CVSS 3.1 | MEDIUM 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | NVD · security@vmware.com (Secondary) |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-vqgp-pf68-6947 — Spring Framework Security Filter Bypass in WebFlux Kotlin Router DSL
European references
- ENISA EUVD · EUVD-2026-35335
- GCVE · GCVE-0-2026-41847
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:*≥ 5.3.0 < 5.3.49
Affected products
| Product | Versions |
|---|---|
| Spring · Spring Framework | affected 5.3.0 < 5.3.49 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |