CVE-2026-22745: Spring MVC and WebFlux applications are vulnerable to Denial of Service attacks when resolving static resources

CVE-2026-22745 · Severity: medium · CVSS 5.3 · Published 2026-04-29

Spring MVC and WebFlux applications are vulnerable to Denial of Service attacks when resolving static resources.

More precisely, an application can be vulnerable when all the following are true:

* the application is using Spring MVC or Spring WebFlux * the application is serving static resources from the file system * the application is running on a Windows platform

When all the conditions above are met, the attacker can send malicious requests that are slow to resolve and that can keep HTTP connections in use. This can cause a Denial of Service on the application.

Technologies: org.springframework:spring-webflux (Maven), org.springframework:spring-webmvc (Maven), Microsoft Windows, VMware Spring Framework. Vendors: Maven, Microsoft, VMware.

Quick answers

Is CVE-2026-22745 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-22745 being exploited in the wild.
How severe is CVE-2026-22745?
Medium severity, with a CVSS score of 5.3, published 29 April 2026.
Which products and versions are affected?
org.springframework:spring-webflux (Maven) ECOSYSTEM:introduced=7.0.0,fixed=7.0.7; org.springframework:spring-webmvc (Maven) ECOSYSTEM:introduced=7.0.0,fixed=7.0.7.
Is there a fix for CVE-2026-22745?
Yes. org.springframework:spring-webflux (Maven): upgrade to 7.0.7 or later; org.springframework:spring-webmvc (Maven): upgrade to 7.0.7 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-22745?
Check whether you run org.springframework:spring-webflux (Maven), org.springframework:spring-webmvc (Maven), Microsoft Windows or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • org.springframework:spring-webflux (Maven): upgrade to 7.0.7 or later
    # set org.springframework:spring-webflux to 7.0.7 in your pom.xml or build.gradle
  • org.springframework:spring-webmvc (Maven): upgrade to 7.0.7 or later
    # set org.springframework:spring-webmvc to 7.0.7 in your pom.xml or build.gradle

Affected products

  • org.springframework:spring-webflux (Maven) ECOSYSTEM:introduced=7.0.0,fixed=7.0.7
  • org.springframework:spring-webmvc (Maven) ECOSYSTEM:introduced=7.0.0,fixed=7.0.7
  • Microsoft Windows
  • VMware Spring Framework

Identifiers

  • CVE-2026-22745
  • GHSA-6p4f-wcwh-5vvm

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