Static resource cache poisoning in Spring MVC and WebFlux

3.1 / 10

LOW

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

Description

Spring MVC and WebFlux applications are vulnerable to cache poisoning 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 configuring the resource chain support https://docs.spring.io/spring-framework/reference/web/webmvc/mvc-config/static-resources.html#page-title with caching enabled
* the application adds support for encoded resources resolution
* the resource cache must be empty when the attacker has access to the application

When all the conditions above are met, the attacker can send malicious requests and poison the resource cache with resources using the wrong encoding. This can cause a denial of service by breaking the front-end application for clients.

Basic Information

ID CVE-2026-22741

Source vmware

Published Apr 29, 2026 at 11:32

Modified Apr 29, 2026 at 14:01

Affected Product

Vendor VMware

Product Spring Framework

Version 7.0.0

Affected Versions VMware Spring Framework 7.0.0
VMware Spring Framework 6.2.0
VMware Spring Framework 6.1.0
VMware Spring Framework 5.3.0

CWE Classification

CWE-524

References

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    "published": "2026-04-29T11:32:12.548Z",
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Static resource cache poisoning in Spring MVC and WebFlux_CVE-2026-22741