CVE-2026-41004: Spring Framework Spring Cloud Config Server Logged Vulnerability

MODERATE
Advisory Identifier: GHSA-j6hh-h3cf-c2hf
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CVSS 4.4
CWE-532
Published
Advisory Summary

CVE-2026-41004 is a MODERATE (CVSS 4.4) spring cloud config server logged vulnerability (CWE-532: Insertion of Sensitive Information into Log File) affecting Spring Framework libraries in the Maven ecosystem. The issue involves spring cloud config server logged sensitive information. Remediation is available by upgrading affected packages to version 4.3.3, 5.0.3.

CVE-2026-41004 at a Glance

CVE Identifier CVE-2026-41004
GHSA Identifier GHSA-j6hh-h3cf-c2hf
Severity MODERATE
CVSS v3.1 Base Score 4.4
CWE Classification CWE-532: Insertion of Sensitive Information into Log File
Affected Product Spring Framework
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.4

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

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

How to Fix CVE-2026-41004

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.cloud:spring-cloud-config-server fixed: Latest secure release 
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-config-server</artifactId>
    <version>Latest secure release</version>
</dependency>
org.springframework.cloud:spring-cloud-config-server fixed: Latest secure release 
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-config-server</artifactId>
    <version>Latest secure release</version>
</dependency>
org.springframework.cloud:spring-cloud-config-server fixed: Latest secure release 
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-config-server</artifactId>
    <version>Latest secure release</version>
</dependency>
org.springframework.cloud:spring-cloud-config-server fixed: 4.3.3 
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-config-server</artifactId>
    <version>4.3.3</version>
</dependency>
org.springframework.cloud:spring-cloud-config-server fixed: 5.0.3 
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-config-server</artifactId>
    <version>5.0.3</version>
</dependency>
org.springframework.cloud:spring-cloud-config-server fixed: Latest secure release 
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-config-server</artifactId>
    <version>Latest secure release</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.cloud

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-41004, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.springframework.cloud

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 4.3.3), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.springframework.cloud 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-532: Insertion of Sensitive Information into Log File, where the product writes sensitive information to a log file. 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

When trace logging is enabled in Spring Cloud Config Server, sensitive information is placed in plain text in the logs. - Spring Cloud Config 3.0.x: affected from 3.0.0 through 3.0.7 (inclusive); no open-source upgrade available. - Spring Cloud Config 3.1.x: affected from 3.1.0 through 3.1.13 (inclusive); no open-source upgrade available. - Spring Cloud Config 4.1.x: affected from 4.1.0 through 4.1.9 (inclusive); no open-source upgrade available. - Spring Cloud Config 4.2.x: affected from 4.2.0 through 4.2.6 (inclusive); no open-source upgrade available. - Spring Cloud Config 4.3.x: affected from 4.3.0 through 4.3.2 (inclusive); upgrade to 4.3.3 or greater. - Spring Cloud Config 5.0.x: affected from 5.0.0 through 5.0.2 (inclusive); upgrade to 5.0.3 or greater.

CVE-2026-41004 Affected Spring Framework Versions

6 component(s)
Fixed Versions:
4.3.35.0.3
Product / Package Ecosystem Affected Versions Fixed Version
org.springframework.cloud:spring-cloud-config-server
maven/org.springframework.cloud/spring-cloud-config-server
Maven
≥ 3.1.0
≤ 3.1.13
org.springframework.cloud:spring-cloud-config-server
maven/org.springframework.cloud/spring-cloud-config-server
Maven
≥ 4.1.0
≤ 4.1.9
org.springframework.cloud:spring-cloud-config-server
maven/org.springframework.cloud/spring-cloud-config-server
Maven
≥ 4.2.0
≤ 4.2.6
org.springframework.cloud:spring-cloud-config-server
maven/org.springframework.cloud/spring-cloud-config-server
Maven
≥ 4.3.0
< 4.3.3
4.3.3
org.springframework.cloud:spring-cloud-config-server
maven/org.springframework.cloud/spring-cloud-config-server
Maven
≥ 5.0.0
< 5.0.3
5.0.3
org.springframework.cloud:spring-cloud-config-server
maven/org.springframework.cloud/spring-cloud-config-server
Maven
≥ 3.0.0
≤ 3.0.7

References

NVD — CVE-2026-41004 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41004
Spring Framework Source Repository REPOSITORY
https://github.com/spring-cloud/spring-cloud-config
Spring Framework Security Information SECURITY
https://spring.io/security/cve-2026-41004

Frequently Asked Questions

What is CVE-2026-41004?
CVE-2026-41004 is a security vulnerability in Spring Framework involving Spring Cloud Config Server Logged Sensitive Information under CWE-532: Insertion of Sensitive Information into Log File.
Which Spring Framework versions are affected?
Affected versions include releases prior to 4.3.3, 5.0.3 across affected packages: org.springframework.cloud:spring-cloud-config-server.
What version fixes CVE-2026-41004?
Upgrading to 4.3.3, 5.0.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is spring-cloud-config-server affected?
Yes, org.springframework.cloud:spring-cloud-config-server is affected in releases prior to Latest secure release, 4.3.3, 5.0.3. Upgrade your dependency to Latest secure release, 4.3.3, 5.0.3 or later.
What is the CVSS score of CVE-2026-41004?
CVE-2026-41004 has a CVSS v3.1 base score of 4.4 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-41004?
CVE-2026-41004 is classified under CWE-532: Insertion of Sensitive Information into Log File (The product writes sensitive information to a log file.).
How can I check Maven dependencies for CVE-2026-41004?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.springframework.cloud'. 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-j6hh-h3cf-c2hf",
  "modified" : "2026-06-18T22:58:06Z",
  "published" : "2026-05-07T06:31:41Z",
  "aliases" : [ "CVE-2026-41004" ],
  "summary" : "Spring Cloud Config Server Logged Sensitive Information",
  "details" : "When trace logging is enabled in Spring Cloud Config Server, sensitive information is placed in plain text in the logs.\n\n- Spring Cloud Config 3.0.x: affected from 3.0.0 through 3.0.7 (inclusive); no open-source upgrade available.\n- Spring Cloud Config 3.1.x: affected from 3.1.0 through 3.1.13 (inclusive); no open-source upgrade available.\n- Spring Cloud Config 4.1.x: affected from 4.1.0 through 4.1.9 (inclusive); no open-source upgrade available.\n- Spring Cloud Config 4.2.x: affected from 4.2.0 through 4.2.6 (inclusive); no open-source upgrade available.\n- Spring Cloud Config 4.3.x: affected from 4.3.0 through 4.3.2 (inclusive); upgrade to 4.3.3 or greater.\n- Spring Cloud Config 5.0.x: affected from 5.0.0 through 5.0.2 (inclusive); upgrade to 5.0.3 or greater.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework.cloud:spring-cloud-config-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.1.0"
      }, {
        "last_affected" : "3.1.13"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework.cloud:spring-cloud-config-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.1.0"
      }, {
        "last_affected" : "4.1.9"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework.cloud:spring-cloud-config-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.2.0"
      }, {
        "last_affected" : "4.2.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework.cloud:spring-cloud-config-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.3.0"
      }, {
        "fixed" : "4.3.3"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 4.3.2"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework.cloud:spring-cloud-config-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.0.0"
      }, {
        "fixed" : "5.0.3"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 5.0.2"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework.cloud:spring-cloud-config-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "last_affected" : "3.0.7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-41004"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/spring-cloud/spring-cloud-config"
  }, {
    "type" : "WEB",
    "url" : "https://spring.io/security/cve-2026-41004"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-532" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-11T16:19:34Z",
    "nvd_published_at" : "2026-05-07T04:16:25Z"
  }
}