CVE-2026-41008: Spring Security OAuth2 Authorization Server: Authorization endpoint performs insufficient validation of the request_uri parameter

June 10, 2026 (updated August 12, 2026)

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.

References

Code Behaviors & Features

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