CVE-2026-22752
Published:April 22, 2026
Updated:April 22, 2026
Spring Security Authorization Server Dynamic Client Registration endpoints perform insufficient validation of certain client metadata fields when explicitly enabled.
An attacker possessing a valid Initial Access Token can dynamically register a malicious client with crafted metadata. Depending on the metadata provided and the Authorization Server's configuration, this can lead to Stored Cross-Site Scripting (XSS), Privilege Escalation, or Server-Side Request Forgery (SSRF).
Affected Packages
https://github.com/spring-projects/spring-authorization-server.git (GITHUB):
Affected version(s) >=1.5.0 <1.5.7Fix Suggestion:
Update to version 1.5.7https://github.com/spring-projects/spring-authorization-server.git (GITHUB):
Affected version(s) >=1.4.0 <1.4.10Fix Suggestion:
Update to version 1.4.10https://github.com/spring-projects/spring-authorization-server.git (GITHUB):
Affected version(s) >=1.3.0 <1.3.11Fix Suggestion:
Update to version 1.3.11https://github.com/spring-projects/spring-security.git (GITHUB):
Affected version(s) >=7.0.0 <7.0.5Fix Suggestion:
Update to version 7.0.5org.springframework.security:spring-security-oauth2-authorization-server (JAVA):
Affected version(s) >=7.0.0 <7.0.5Fix Suggestion:
Update to version 7.0.5org.springframework.security:spring-security-oauth2-authorization-server (JAVA):
Affected version(s) >=1.5.0 <1.5.7Fix Suggestion:
Update to version 1.5.7org.springframework.security:spring-security-oauth2-authorization-server (JAVA):
Affected version(s) >=1.3.0 <1.3.11Fix Suggestion:
Update to version 1.3.11org.springframework.security:spring-security-oauth2-authorization-server (JAVA):
Affected version(s) >=1.4.0 <1.4.10Fix Suggestion:
Update to version 1.4.10Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
9.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
