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CVE-2026-22740— Spring Framework DoS with Multipart Temp Files in WebFlux

Quick assessment

Affected
VMware Spring Framework
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

VMware Spring Framework是美国威睿（VMware）公司的一套开源的Java、JavaEE应用程序框架。该框架可帮助开发人员构建高质量的应用。 VMware Spring Framework存在资源管理错误漏洞，该漏洞源于处理多部分请求时创建的临时文件在请求完成后可能未被删除，可能导致攻击者消耗可用磁盘空间。

CVSS 6.5 · Medium EPSS 0.34% · P26

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 4

VendorProduct Version RangeStatus
VMware Spring Framework 7.0.0< 7.0.7 affected
6.2.0< 6.2.18 affected
6.1.0< 6.1.27 affected
5.3.0< 5.3.48 affected
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I. Basic Information for CVE-2026-22740

Vulnerability Information
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Vulnerability Title
Spring Framework DoS with Multipart Temp Files in WebFlux
Source: CVE Program / CVE List V5
Vulnerability Description
A 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
VMware Spring Framework 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
VMware Spring Framework是美国威睿（VMware）公司的一套开源的Java、JavaEE应用程序框架。该框架可帮助开发人员构建高质量的应用。 VMware Spring Framework存在资源管理错误漏洞，该漏洞源于处理多部分请求时创建的临时文件在请求完成后可能未被删除，可能导致攻击者消耗可用磁盘空间。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
VMware Spring Framework 7.0.0 ~ 7.0.7 -

II. Public POCs for CVE-2026-22740

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III. Intelligence Information for CVE-2026-22740

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Vendor Advisories for CVE-2026-22740 (2)

Same Patch Batch · VMware · 2026-04-29 · 3 CVEs total

CVE-2026-22745 5.3 MEDIUM CVE-2026-22745 : Denial of service in static resource handling on Windows platforms
CVE-2026-22741 3.1 LOW Static resource cache poisoning in Spring MVC and WebFlux

IV. Related Vulnerabilities

Same product: Spring Framework
Same vendor: VMware
Same weakness: CWE-400

V. Comments for CVE-2026-22740

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