EUVD-2026-35327
GHSA-83f7-v6px-pp3h
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionCVE.org
Spring WebFlux applications are vulnerable to Denial of Service (DoS) attacks when processing multipart requests.
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.
AnalysisAI
Denial of Service in Spring WebFlux's multipart request processing allows unauthenticated remote attackers to exhaust server resources across all supported Spring Framework branches. Affects Spring Framework 5.3.x through 7.0.x when applications use the reactive WebFlux stack and expose endpoints that accept multipart data. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The target application must be built on the Spring WebFlux reactive stack (not Spring MVC); Spring MVC applications are not affected. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 5.9 (Medium) is driven by AV:N (network reachable), AC:H (high attack complexity), PR:N (no privileges required), UI:N (no user interaction), and A:H (complete availability loss), with no confidentiality or integrity impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated remote attacker identifies a Spring WebFlux application exposing a multipart form or file-upload endpoint and sends a specially crafted multipart HTTP request designed to trigger unbounded resource consumption during parsing. The application's reactive event loop becomes resource-starved - exhausting heap memory or processing capacity - causing the service to become unresponsive or crash, denying service to all legitimate users. … |
| Remediation | Upgrade to a patched Spring Framework release per the VMware/Spring vendor advisory at https://spring.io/security/cve-2026-41840. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
More from same product – last 7 days
Local denial of service in Android's PackageInstaller subsystem stems from a logic error in PackageInstallerSession.tran
Remote code execution in Spring for GraphQL versions 1.3.0-1.3.8, 1.4.0-1.4.5, and 2.0.0-2.0.3 allows unauthenticated at
NoSQL/query injection in Spring AI Vector Stores (1.0.0-1.0.8 and 1.1.0-1.1.7) allows remote unauthenticated attackers t
Origin validation failure in Spring Cloud Gateway (WebMVC and WebFlux Server variants) allows remote attackers to spoof
Server-Side Request Forgery in Spring Web Services (versions 3.1.0-3.1.8, 4.0.0-4.0.18, 4.1.0-4.1.3, and 5.0.0-5.0.1) al
Share
External POC / Exploit Code
Leaving vuln.today