CVE-2026-22741

Static resource cache poisoning in Spring MVC and WebFlux

Published Apr 29, 2026 CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-wg35-8jpf-2xv3 Spring MVC and WebFlux applications are vulnerable to cache poisoning when resolving static resources.
History
Type Values Removed Values Added
CPEs cpe:2.3:a:vmware:spring_framework:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Vmware
Vmware spring Framework
Vendors & Products Vmware
Vmware spring Framework
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 0, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:N'}

cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Static resource cache poisoning in Spring MVC and WebFlux
Weaknesses CWE-524
References
Metrics cvssV3_1

{'score': 0, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
vmware
Published
Updated
Apr 29, 2026, 2:01 PM
Reserved
Jan 9, 2026, 6:54 AM
Status
Analyzed
Published
Apr 29, 2026, 12:16 PM
Modified
Oct 26, 2026, 8:10 PM
Severity
Moderate
Public date
Apr 29, 2026, 11:32 AM