{"id":"CVE-2026-111622","revision":"033a427ee3574e998c43403961f5adc3","records":[{"revision":"033a427ee3574e998c43403961f5adc3","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-111622","aliases":[],"title":"smart-sso through 2.1.1 OAuth2 Authorization Code Theft via Unvalidated redirectUri","description":"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.","state":0,"publishedAt":"2026-10-16T17:38:58.736+00:00","modifiedAt":"2026-10-16T19:29:48.555+00:00","affected":[{"ecosystem":"Vendor product","name":"smart-sso","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"a466350665\",\n                    \"product\": \"smart-sso\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"2.1.1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:github/a466350665/smart-sso\",\n                    \"repo\": \"https://github.com/a466350665/smart-sso\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":7.6,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","score":6.8,"severity":"MEDIUM"}],"references":["https://hackmd.io/@hieuPenguinnn/smart-sso-oauth2-code-leak-open-redirect","https://github.com/a466350665/smart-sso/blob/2.1.1/smart-sso-server/src/main/java/com/smart/sso/server/controller/LoginController.java#L53-L63","https://github.com/a466350665/smart-sso/blob/1.6.0/smart-sso-server/src/main/java/openjoe/smart/sso/server/controller/LoginController.java#L50-L59","https://github.com/a466350665/smart-sso/blob/1.6.0/smart-sso-server/src/main/java/openjoe/smart/sso/server/controller/Oauth2Controller.java#L55-L84","https://github.com/a466350665/smart-sso","https://www.vulncheck.com/advisories/smart-sso-through-2.1.1-oauth2-authorization-code-theft-via-unvalidated-redirecturi"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111622","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111622","identifiers":["CVE-2026-111622"]},"retained":false,"historicalAffected":[]}],"coverage":[]}