GHSA-wg35-8jpf-2xv3 CVE-2026-22741
Spring MVC and WebFlux applications are vulnerable to cache poisoning when resolving static resources.
- Severity
- 3.1 / 10
- Low · CVSS 3.1
- Exploit chance (EPSS)
- 0.24%
- Chance of exploitation in the next 30 days. Higher than 14.61% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-524 Use of Cache Containing Sensitive Information
- Fix
- Available
- 2 packages have a fixed version
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.
Affected versions
Maven
| Package | Vulnerable | Fixed in |
|---|---|---|
| org.springframework:spring-webflux | >= 7.0.0, < 7.0.7 |
7.0.7 |
| org.springframework:spring-webflux | >= 6.2.0, < 6.2.18 |
6.2.18 |
| org.springframework:spring-webflux | >= 6.1.0, <= 6.1.26 |
No fix yet |
| org.springframework:spring-webflux | <= 5.3.47 |
No fix yet |
| org.springframework:spring-webmvc | >= 7.0.0, < 7.0.7 |
7.0.7 |
| org.springframework:spring-webmvc | >= 6.2.0, < 6.2.18 |
6.2.18 |
| org.springframework:spring-webmvc | >= 6.1.0, <= 6.1.26 |
No fix yet |
| org.springframework:spring-webmvc | <= 5.3.47 |
No fix yet |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
org.springframework:spring-webflux Maven → 7.0.7
- maven
<dependency><groupId>org.springframework</groupId><artifactId>spring-webflux</artifactId><version>7.0.7</version></dependency>- gradle
implementation("org.springframework:spring-webflux:7.0.7")
org.springframework:spring-webmvc Maven → 7.0.7
- maven
<dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>7.0.7</version></dependency>- gradle
implementation("org.springframework:spring-webmvc:7.0.7")
Severity breakdown
CVSS 3.1 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Weakness
CWE-524: Use of Cache Containing Sensitive Information
The code uses a cache that contains sensitive information, but the cache can be read by an actor outside of the intended control sphere.
How to prevent it
- Architecture and Design: Protect information stored in cache.
- Architecture and Design: Do not store unnecessarily sensitive information in the cache.
- Architecture and Design: Consider using encryption in the cache.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-36p3-wjmg-h94x Remote Code Execution in Spring Framework | Critical Known exploited | Also affects org.springframework:spring-webflux |
| GHSA-9qf2-26p9-2q2q Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints | Critical | Also affects org.springframework:spring-webflux |
| GHSA-j9f9-w8pj-32f8 Spring Framework Server Sent Event stream corruption while rendering fragments | Critical | Also affects org.springframework:spring-webflux |
| GHSA-pc63-qcmh-9cmg Spring Framework Improper Path Limitation in XsltView | Critical | Also affects org.springframework:spring-webmvc |
| GHSA-cjpg-rgq5-fr37 Spring Framework Multipart Request Smuggling in Spring MVC and WebFlux | Medium | Also affects org.springframework:spring-webflux |
| GHSA-vqgp-pf68-6947 Spring Framework Security Filter Bypass in WebFlux Kotlin Router DSL | Medium | Also affects org.springframework:spring-webflux |
| GHSA-957g-f97v-vppc Spring Framework Cross-site Scripting via JSP Form Tags | Medium | Also affects org.springframework:spring-webmvc |
| GHSA-3chg-m5w7-qfv5 Spring Framework Cross-site Scripting via JavaScriptUtils | Medium | Also affects org.springframework:spring-webmvc |
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