AIKIDO-2026-10580
spring-security-oauth2-authorization-server is vulnerable to Improper Input Validation
95
Critical Risk
This Affects:
spring-security-oauth2-authorization-serverTL;DR
Affected versions of this package are vulnerable to improper input validation in Dynamic Client Registration endpoints because certain client metadata fields are insufficiently validated when the feature is enabled. An attacker with a valid Initial Access Token may register a malicious client with crafted metadata, potentially leading to stored cross-site scripting, privilege escalation, or server-side request forgery.
Who does this affect?
You are affected if using a vulnerable version.
Background info
spring-security-oauth2-authorization-server is vulnerable to Improper Input Validation in versions 1.3.0 - 1.3.10, 1.4.0 - 1.4.9, 1.5.0 - 1.5.6 and 7.0.0 - 7.0.4.
How to fix this
Upgrade the org.springframework.security:spring-security-oauth2-authorization-server library to the patch version.
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SOC 2Compliant
ISO 27001Compliant