Medium (6.1). EPSS 0.2% chance of exploitation in the next 30 days. Fixed in org.springframework.security:spring-security-oauth2-authorization-server 1.5.8, 7.0.6.
Spring Security Authorization Server's authorization endpoint performs insufficient validation of the request_uri parameter. An attacker can craft a malicious authorization request containing an invalid request_uri and an arbitrary, unvalidated redirect_uri, which can lead to an Open Redirect vulnerability.
Affected versions:
Spring Security 7.0.0 through 7.0.5.
Spring Authorization Server 1.5.0 through 1.5.7.
Severity
CVSS 3.1
6.1 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-31)