Open Redirect in A466350665 Smart-Sso
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 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.
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@hieuPenguinnn/smart-sso-oauth2-code-leak-open-redirect (third-party-advisory)
- github.com/a466350665/smart-sso/blob/2.1.1/smart-sso-server/src/main/java/com/s… (technical-description)
- github.com/a466350665/smart-sso/blob/1.6.0/smart-sso-server/src/main/java/openj… (technical-description)
- github.com/a466350665/smart-sso/blob/1.6.0/smart-sso-server/src/main/java/openj… (technical-description)
- github.com/a466350665/smart-sso (product)
- www.vulncheck.com/advisories/smart-sso-through-2.1.1-oauth2-authorization-code-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111622?
- CVE-2026-111622 is a medium-severity vulnerability in A466350665 Smart-Sso, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.8/10. Published 2026-10-16.
- How severe is CVE-2026-111622?
- Medium severity. CVSS v3 base score is 6.8 out of 10.