Spring Framework DoS with Multipart Temp Files in WebFlux

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Summary

CVECVE-2026-22740
StatePUBLISHED
Assignervmware
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-29 12:16:18 UTC
Updated2026-05-04 14:51:28 UTC
DescriptionA WebFlux server application that processes multipart requests creates temp files for parts larger than 10 K. Under some circumstances, temp files may remain not deleted after the request is fully processed. This allows an attacker to consume available disk space. Older, unsupported versions are also affected.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000460000 probability, percentile 0.141270000 (date 2026-05-03)

Problem Types: CWE-400 | CWE-400 CWE-400 Uncontrolled Resource Consumption

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Vmware Spring Framework All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA VMware Spring Framework affected 7.0.0 7.0.7 semver Not specified
CNA VMware Spring Framework affected 6.2.0 6.2.18 semver Not specified
CNA VMware Spring Framework affected 6.1.0 6.1.27 semver Not specified
CNA VMware Spring Framework affected 5.3.0 5.3.48 semver Not specified

References

ReferenceSourceLinkTags
nvd.nist.gov/vuln-metrics/cvss/v3-calculator [email protected] nvd.nist.gov US Government Resource
spring.io/security/cve-2026-22740 [email protected] spring.io Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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