Bug 2486722 (CVE-2026-41840)

Summary: CVE-2026-41840 Spring Framework: Spring WebFlux: Denial of Service via multipart request processing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: gmalinko, janstey, pdelbell, rstepani
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Spring WebFlux applications. A remote attacker could exploit this vulnerability by sending specially crafted multipart requests, leading to a Denial of Service (DoS) condition. This could make the application unavailable to legitimate users.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-06-09 05:02:33 UTC 
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.