Vulnerabilities in pkg:maven/org.springframework/spring-webflux

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Advisory Identifier: GHSA-9qf2-26p9-2q2q
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Advisory Summary

CVE-2026-47892 is a CRITICAL (CVSS 9.8) spring framework header predicate bypass vulnerability (CWE-863: Incorrect Authorization) affecting Spring Framework libraries in the Maven ecosystem. The issue involves spring framework header predicate bypass in webflux functional endpoints. Remediation is available by upgrading affected packages to version 7.0.9.

20 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/org.springframework/spring-webflux

20 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/org.springframework/spring-webflux. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-9qf2-26p9-2q2q CVE-2026-47892 CRITICAL Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints
GHSA-j9f9-w8pj-32f8 CVE-2026-47890 CRITICAL Spring Framework Server Sent Event stream corruption while rendering fragments
GHSA-g5vr-rgqm-vf78 CVE-2024-38819 HIGH Spring Framework Path Traversal vulnerability
GHSA-cjpg-rgq5-fr37 CVE-2026-41853 MODERATE Spring Framework Multipart Request Smuggling in Spring MVC and WebFlux
GHSA-vqgp-pf68-6947 CVE-2026-41847 MODERATE Spring Framework Security Filter Bypass in WebFlux Kotlin Router DSL
GHSA-h3qp-gqrc-q736 CVE-2026-41844 MODERATE Spring Framework Open Redirect in Spring MVC and WebFlux
GHSA-72pg-x5f8-j25j CVE-2026-41843 MODERATE Spring Framework Path Traversal via Versioned Static Resources in Spring MVC and WebFlux
GHSA-x23c-287f-qqv5 CVE-2026-41842 HIGH Spring Framework Denial of Service via Versioned Resources in Spring MVC and WebFlux
GHSA-mq64-j8f9-9gcj CVE-2026-41841 MODERATE Spring Framework Information Disclosure via Static Resource Cache in Spring MVC and WebFlux
GHSA-83f7-v6px-pp3h CVE-2026-41840 MODERATE Spring Framework Denial of Service via Multipart Requests in WebFlux
GHSA-4hfh-6x8g-gwpp CVE-2026-41839 MODERATE Spring Framework Escalation via Session Fixation in WebFlux
GHSA-5843-p793-ghmm CVE-2026-22740 MODERATE Spring Framework DoS with Multipart Temp Files in WebFlux
GHSA-wg35-8jpf-2xv3 CVE-2026-22741 LOW Spring MVC and WebFlux applications are vulnerable to cache poisoning when resolving static resources.
GHSA-6p4f-wcwh-5vvm CVE-2026-22745 MODERATE Spring MVC and WebFlux applications are vulnerable to Denial of Service attacks when resolving static resources
GHSA-4773-3jfm-qmx3 CVE-2026-22737 MODERATE Spring Framework Improper Path Limitation with Script View Templates
GHSA-6hcq-hmm3-jj3c CVE-2026-22735 LOW Spring MVC and WebFlux has Server Sent Event stream corruption
GHSA-36p3-wjmg-h94x CVE-2022-22965 CRITICAL Remote Code Execution in Spring Framework
GHSA-cx7f-g6mp-7hqm CVE-2024-38816 HIGH Path traversal vulnerability in functional web frameworks
GHSA-7pm4-g2qj-j85x CVE-2020-5397 MODERATE CSRF attack via CORS preflight requests with Spring MVC or Spring WebFlux
GHSA-8wx2-9q48-vm9r CVE-2020-5398 HIGH RFD attack via Content-Disposition header sourced from request input by Spring MVC or Spring WebFlux Application

CVE-2026-47892 at a Glance

CVE Identifier CVE-2026-47892
GHSA Identifier GHSA-9qf2-26p9-2q2q
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-863: Incorrect Authorization
Affected Product Spring Framework
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-47892

To remediate this vulnerability, upgrade all affected Spring Framework dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.springframework:spring-webflux fixed: Latest secure release 
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webflux</artifactId>
    <version>Latest secure release</version>
</dependency>
org.springframework:spring-webflux fixed: Latest secure release 
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webflux</artifactId>
    <version>Latest secure release</version>
</dependency>
org.springframework:spring-webflux fixed: Latest secure release 
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webflux</artifactId>
    <version>Latest secure release</version>
</dependency>
org.springframework:spring-webflux fixed: Latest secure release 
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webflux</artifactId>
    <version>Latest secure release</version>
</dependency>
org.springframework:spring-webflux fixed: Latest secure release 
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webflux</artifactId>
    <version>Latest secure release</version>
</dependency>
org.springframework:spring-webflux fixed: 7.0.9 
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webflux</artifactId>
    <version>7.0.9</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.springframework

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-47892, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.springframework

Analyze the terminal output to locate any version of Spring Framework in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.0.9), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.springframework command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Spring Framework, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A WebFlux application using functional endpoints and deployed with DispatcherServlet may be vulnerable to a header predicate bypass in a pre-flight request. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.5.RELEASE - 5.2.25.RELEASE

CVE-2026-47892 Affected Spring Framework Versions

6 component(s)
Fixed Versions:
7.0.9
Product / Package Ecosystem Affected Versions Fixed Version
org.springframework:spring-webflux
maven/org.springframework/spring-webflux
Maven
≥ 5.2.5.RELEASE
≤ 5.2.25.RELEASE
org.springframework:spring-webflux
maven/org.springframework/spring-webflux
Maven
≥ 5.3.0
≤ 5.3.49
org.springframework:spring-webflux
maven/org.springframework/spring-webflux
Maven
≥ 6.0.0
≤ 6.0.30
org.springframework:spring-webflux
maven/org.springframework/spring-webflux
Maven
≥ 6.1.0
≤ 6.1.28
org.springframework:spring-webflux
maven/org.springframework/spring-webflux
Maven
≥ 6.2.0
≤ 6.2.19
org.springframework:spring-webflux
maven/org.springframework/spring-webflux
Maven
≥ 7.0.0
< 7.0.9
7.0.9

References

NVD — CVE-2026-47892 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47892
Spring Framework Source Repository REPOSITORY
https://github.com/spring-projects/spring-framework
Spring Framework Security Information SECURITY
https://spring.io/security/cve-2026-47892

Frequently Asked Questions

What is CVE-2026-47892?
CVE-2026-47892 is a security vulnerability in Spring Framework involving Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints under CWE-863: Incorrect Authorization.
Which Spring Framework versions are affected?
Affected versions include releases prior to 7.0.9 across affected packages: org.springframework:spring-webflux.
What version fixes CVE-2026-47892?
Upgrading to 7.0.9 (or the latest patched release for your respective branch) resolves the vulnerability.
Is spring-webflux affected?
Yes, org.springframework:spring-webflux is affected in releases prior to Latest secure release, 7.0.9. Upgrade your dependency to Latest secure release, 7.0.9 or later.
What is the CVSS score of CVE-2026-47892?
CVE-2026-47892 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-47892?
CVE-2026-47892 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check Maven dependencies for CVE-2026-47892?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.springframework'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9qf2-26p9-2q2q",
  "modified" : "2026-10-07T13:20:45Z",
  "published" : "2026-08-27T06:31:34Z",
  "aliases" : [ "CVE-2026-47892" ],
  "summary" : "Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints",
  "details" : "A WebFlux application using functional endpoints and deployed with DispatcherServlet may be vulnerable to a header predicate bypass in a pre-flight request.\nSpring Framework 7.0.0 - 7.0.8\nSpring Framework 6.2.0 - 6.2.19\nSpring Framework 6.1.0 - 6.1.28\nSpring Framework 6.0.0 - 6.0.30\nSpring Framework 5.3.0 - 5.3.49\nSpring Framework 5.2.5.RELEASE - 5.2.25.RELEASE",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework:spring-webflux"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.2.5.RELEASE"
      }, {
        "last_affected" : "5.2.25.RELEASE"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework:spring-webflux"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.3.0"
      }, {
        "last_affected" : "5.3.49"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework:spring-webflux"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.0.0"
      }, {
        "last_affected" : "6.0.30"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework:spring-webflux"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.1.0"
      }, {
        "last_affected" : "6.1.28"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework:spring-webflux"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.2.0"
      }, {
        "last_affected" : "6.2.19"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework:spring-webflux"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.0.9"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 7.0.8"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-47892"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/spring-projects/spring-framework"
  }, {
    "type" : "WEB",
    "url" : "https://spring.io/security/cve-2026-47892"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-10-07T13:20:45Z",
    "nvd_published_at" : "2026-08-27T06:17:20Z"
  }
}