CVE-2026-22747: Spring Framework Spring Security Vulnerable To Unauthorized Vulnerability

MODERATE
Advisory Identifier: GHSA-2jrg-rf5x-568g
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CVSS 6.8
CWE-297
Published
Advisory Summary

CVE-2026-22747 is a MODERATE (CVSS 6.8) spring security vulnerable to unauthorized vulnerability (CWE-297: Improper Validation of Certificate with Host Mismatch) affecting Spring Framework libraries in the Maven ecosystem. The issue involves spring security vulnerable to unauthorized user impersonation when using x.509 client certificates. Remediation is available by upgrading affected packages to version 7.0.5.

CVE-2026-22747 at a Glance

CVE Identifier CVE-2026-22747
GHSA Identifier GHSA-2jrg-rf5x-568g
Severity MODERATE
CVSS v3.1 Base Score 6.8
CWE Classification CWE-297: Improper Validation of Certificate with Host Mismatch
Affected Product Spring Framework
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.8

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

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

How to Fix CVE-2026-22747

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.security:spring-security-web fixed: 7.0.5 
<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-web</artifactId>
    <version>7.0.5</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.security

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-22747, inspect your build dependencies using the Maven Dependency Plugin:

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

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 7.0.5), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.springframework.security 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-297: Improper Validation of Certificate with Host Mismatch, where the product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host. 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

Vulnerability in Spring Spring Security. SubjectX500PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. This issue affects Spring Security: from 7.0.0 through 7.0.4.

CVE-2026-22747 Affected Spring Framework Versions

1 component(s)
Fixed Versions:
7.0.5
Product / Package Ecosystem Affected Versions Fixed Version
org.springframework.security:spring-security-web
maven/org.springframework.security/spring-security-web
Maven
≥ 7.0.0
< 7.0.5
7.0.5

References

NVD — CVE-2026-22747 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-22747
Security Fix Commit FIX COMMIT
https://github.com/spring-projects/spring-security/commit/88118afb8f9357ae7cc215500a441e89fee701c3
Spring Framework Source Repository REPOSITORY
https://github.com/spring-projects/spring-security
Spring Framework Security Information SECURITY
https://spring.io/security/cve-2026-22747

Frequently Asked Questions

What is CVE-2026-22747?
CVE-2026-22747 is a security vulnerability in Spring Framework involving Spring Security Vulnerable to Unauthorized User Impersonation when Using X.509 Client Certificates under CWE-297: Improper Validation of Certificate with Host Mismatch.
Which Spring Framework versions are affected?
Affected versions include releases prior to 7.0.5 across affected packages: org.springframework.security:spring-security-web.
What version fixes CVE-2026-22747?
Upgrading to 7.0.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is spring-security-web affected?
Yes, org.springframework.security:spring-security-web is affected in releases prior to 7.0.5. Upgrade your dependency to 7.0.5 or later.
What is the CVSS score of CVE-2026-22747?
CVE-2026-22747 has a CVSS v3.1 base score of 6.8 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-22747?
CVE-2026-22747 is classified under CWE-297: Improper Validation of Certificate with Host Mismatch (The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host.).
How can I check Maven dependencies for CVE-2026-22747?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.springframework.security'. 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-2jrg-rf5x-568g",
  "modified" : "2026-04-29T20:44:36Z",
  "published" : "2026-04-22T06:30:28Z",
  "aliases" : [ "CVE-2026-22747" ],
  "summary" : "Spring Security Vulnerable to Unauthorized User Impersonation when Using X.509 Client Certificates",
  "details" : "Vulnerability in Spring Spring Security. SubjectX500PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user.\nThis issue affects Spring Security: from 7.0.0 through 7.0.4.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework.security:spring-security-web"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.0.5"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 7.0.4"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-22747"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/spring-projects/spring-security/commit/88118afb8f9357ae7cc215500a441e89fee701c3"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/spring-projects/spring-security"
  }, {
    "type" : "WEB",
    "url" : "https://spring.io/security/cve-2026-22747"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-297" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-29T20:44:36Z",
    "nvd_published_at" : "2026-04-22T06:16:03Z"
  }
}