CVE-2026-41853

Spring Framework Multipart Request Smuggling in Spring MVC and WebFlux

At a glance

Severity: MEDIUM 5.3
EPSS: EPSS 0.19 % · percentile 8 (2026-10-27)
State: PUBLISHED
Published: 2026-06-09
Updated: 2026-06-27
Assigner: vmware
NVD status: Analyzed

Description

Spring MVC and WebFlux applications are vulnerable to Multipart request smuggling attacks. 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.

Scores

Version	Score	Vector	Scored by
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	vmware
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 · security@vmware.com (Secondary)

Weaknesses (CWE)

CWE-444

Advisories

GHSA-cjpg-rgq5-fr37 — Spring Framework Multipart Request Smuggling in Spring MVC and WebFlux

European references

ENISA EUVD · EUVD-2026-35342
GCVE · GCVE-0-2026-41853

CERT-FR advisories

CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2026-AVI-1355 — Multiples vulnérabilités dans Oracle Weblogic · cert.ssi.gouv.fr
CERTFR-2026-AVI-1336 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2026-AVI-1206 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:* ≥ 5.3.0 < 5.3.49
cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:* ≥ 6.1.0 < 6.1.28
cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:* ≥ 6.2.0 < 6.2.18.1
cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:* ≥ 7.0.0 < 7.0.7.1

Affected products

Product	Versions
Spring · Spring Framework	affected 7.0.0 < 7.0.7.1 ; affected 6.2.0 < 6.2.18.1 ; affected 6.1.0 < 6.1.28 ; affected 5.3.0 < 5.3.49

References

https://spring.io/security/cve-2026-41853

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