HIGH 7.6 NVD
CVE-2026-111622
smart-sso through 2.1.1 contains an open redirect vulnerability in the /login handler that allows unauthenticated attackers to steal OAuth2 authorization codes
smart-sso through 2.1.1 contains an open redirect vulnerability in the /login handler that allows unauthenticated attackers to steal OAuth2 authorization codes by supplying an unvalidated redirectUri parameter. Attackers can send crafted /login links to users with active SSO sessions, then redeem stolen codes at /oauth2/access_token with any valid client credentials to obtain victims' access tokens.
References
- https://github.com/a466350665/smart-sso
- https://github.com/a466350665/smart-sso/blob/1.6.0/smart-sso-server/src/main/java/openjoe/
- https://github.com/a466350665/smart-sso/blob/1.6.0/smart-sso-server/src/main/java/openjoe/
- https://github.com/a466350665/smart-sso/blob/2.1.1/smart-sso-server/src/main/java/com/smar
- https://hackmd.io/@hieuPenguinnn/smart-sso-oauth2-code-leak-open-redirect
This high severity vulnerability with a CVSS score of 7.6 was published on 2026-10-16 via NVD.
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