Incorrect authorization in smart-sso PermissionFilter enables admin access
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
smart-sso through 2.0.1 contains an incorrect authorization flaw in PermissionFilter (CWE-863) that lets any authenticated user call admin console APIs. Unlisted paths are permitted by default. An attacker can call /admin/user-role/save to assign themselves the administrator role, reset passwords, and manage users, roles, and applications across integrated systems.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
smart-sso through 2.0.1 contains an incorrect authorization vulnerability in PermissionFilter that allows any authenticated user to call admin console APIs because unlisted paths are permitted by default. Attackers can call /admin/user-role/save to assign themselves the administrator role, reset passwords, and manage users, roles, and applications across integrated systems.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| a466350665 | smart-sso | up to 2.0.1 | — | No fix listed | CNA |
- smart-sso Vendora466350665 Affected up to 2.0.1 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for smart-sso.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Timeline
- 2026-11-03 Threatist record created from CVE-2026-121543
- 2026-11-03 CISA SSVC decision points changed
- 2026-11-03 Priority changed: MEDIUM → LOW
- 2026-11-03 Alias added: GHSA-cfjx-qgfm-vmq8
- 2026-11-05 Priority changed: LOW → MEDIUM
References
Patch 2
Other 4
- GitHub Issue #79
- https://github.com/a466350665/smart-sso
- https://github.com/a466350665/smart-sso/blob/91d2dfef8973d308fa1b762e4c86dfbcbe9793ff/smart-sso-starter/smart-sso-starter-client/src/main/java/openjoe/smart/sso/client/filter/PermissionFilter.java#L38-L47
- https://github.com/a466350665/smart-sso/blob/91d2dfef8973d308fa1b762e4c86dfbcbe9793ff/smart-sso-server/src/main/java/openjoe/smart/sso/server/controller/admin/UserRoleController.java
More a466350665 vulnerabilities
- TI-2026-75408 Open redirect in smart-sso lets attackers steal OAuth2 codes CVSS 4.0HIGH 7.6
- TI-2026-02563 a466350665 Smart-SSO Login login.html cross site scripting CVSS 4.0MEDIUM 5.3
- TI-2026-02564 a466350665 Smart-SSO Role Edit UserController.java save cross site scripting CVSS 4.0MEDIUM 4.8
Sources
- CVE-2026-121543 · CVE Program
- CVE-2026-121543 · NVD
- FIRST EPSS
- GHSA-cfjx-qgfm-vmq8 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences