CVE-2026-22739: Spring Cloud Config Server Path Traversal Vulnerability
HIGHCVE-2026-22739 is a HIGH (CVSS 8.6) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Spring Cloud Config Server libraries in the Maven ecosystem. The issue involves path traversal via profile parameter allows arbitrary file access. Remediation is available by upgrading affected packages to version 4.3.2, 5.0.2.
CVE-2026-22739 at a Glance
Security Impact
CVSS: 8.6
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:L/A:L).
How to Fix CVE-2026-22739
To remediate this vulnerability, upgrade all affected Spring Cloud Config Server dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
<version>4.3.2</version>
</dependency><dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
<version>5.0.2</version>
</dependency><dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
<version>Latest secure release</version>
</dependency><dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
<version>Latest secure release</version>
</dependency><dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
<version>Latest secure release</version>
</dependency>Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:tree -Dincludes=org.springframework.cloudHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2026-22739, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=org.springframework.cloudAnalyze the terminal output to locate any version of Spring Cloud Config Server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.3.2), 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Spring Cloud Config Server, 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
CVE-2026-22739 Affected Spring Cloud Config Server Versions
5 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
org.springframework.cloud:spring-cloud-config-server
|
Maven |
≥ 4.3.0
< 4.3.2
|
4.3.2
|
|
org.springframework.cloud:spring-cloud-config-server
|
Maven |
≥ 5.0.0-M1
< 5.0.2
|
5.0.2
|
|
org.springframework.cloud:spring-cloud-config-server
|
Maven |
≥ 4.2.0
≤ 4.2.4
|
|
|
org.springframework.cloud:spring-cloud-config-server
|
Maven |
≥ 4.0.0
≤ 4.1.7
|
|
|
org.springframework.cloud:spring-cloud-config-server
|
Maven |
≤ 3.1.10
|
|
References
Frequently Asked Questions
What is CVE-2026-22739?
Which Spring Cloud Config Server versions are affected?
What version fixes CVE-2026-22739?
Is spring-cloud-config-server affected?
What is the CVSS score of CVE-2026-22739?
What CWE is associated with CVE-2026-22739?
How can I check Maven dependencies for CVE-2026-22739?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-3qwq-q9vm-5j42",
"modified" : "2026-03-26T17:08:55Z",
"published" : "2026-03-24T03:31:19Z",
"aliases" : [ "CVE-2026-22739" ],
"summary" : "Spring Cloud Config Server: Path Traversal via Profile Parameter Allows Arbitrary File Access",
"details" : "Vulnerability in Spring Cloud when substituting the profile parameter from a request made to the Spring Cloud Config Server configured to the native file system as a backend, because it was possible to access files outside of the configured search directories.This issue affects Spring Cloud: from 3.1.X before 3.1.13, from 4.1.X before 4.1.9, from 4.2.X before 4.2.3, from 4.3.X before 4.3.2, from 5.0.X before 5.0.2.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "org.springframework.cloud:spring-cloud-config-server"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "4.3.0"
}, {
"fixed" : "4.3.2"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.springframework.cloud:spring-cloud-config-server"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "5.0.0-M1"
}, {
"fixed" : "5.0.2"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.springframework.cloud:spring-cloud-config-server"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "4.2.0"
}, {
"last_affected" : "4.2.4"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.springframework.cloud:spring-cloud-config-server"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "4.0.0"
}, {
"last_affected" : "4.1.7"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.springframework.cloud:spring-cloud-config-server"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"last_affected" : "3.1.10"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-22739"
}, {
"type" : "WEB",
"url" : "https://github.com/spring-cloud/spring-cloud-config/commit/1870f07befd5f62edcfdaea5ad82441d0fd49912"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/spring-cloud/spring-cloud-config"
}, {
"type" : "WEB",
"url" : "https://github.com/spring-cloud/spring-cloud-config/releases/tag/v4.3.2"
}, {
"type" : "WEB",
"url" : "https://github.com/spring-cloud/spring-cloud-config/releases/tag/v5.0.2"
}, {
"type" : "WEB",
"url" : "https://spring.io/security/cve-2026-22739"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-22" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2026-03-26T17:08:55Z",
"nvd_published_at" : "2026-03-24T01:17:00Z"
}
}