CVE-2026-111694
qKnow through 2.4.3 Missing Authentication via /flyflow Workflow Endpoints
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 16, 2026
- Updated
- Oct 21, 2026
- Reserved
- Oct 16, 2026
Description
qKnow through 2.4.3 contains a missing authentication vulnerability that allows unauthenticated remote attackers to access /flyflow workflow integration endpoints permitted in SecurityConfig. Attackers can POST sequential userId values to /flyflow/userById or call roleAll and deptListByParentDeptId to enumerate user phone numbers, roles, and department structure.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-306 Missing Authentication for Critical Function
Affected Products
| Product | Versions |
|---|---|
qKnowqiantongtech |
|
References
- https://hackmd.io/@hieuPenguinnn/qknow-flyflow-unauth-user-directory-disclosurethird-party-advisory
- https://github.com/qiantongtech/qKnow/blob/v2.4.3/qknow-framework/qknow-security/src/main/java/tech/qiantong/qknow/security/config/SecurityConfig.java#L133technical-description
- https://github.com/qiantongtech/qKnow/blob/v2.4.3/qknow-module-system/qknow-module-system-biz/src/main/java/tech/qiantong/qknow/module/system/controller/admin/flyflow/FlyFlowController.java#L77-L99technical-description
- https://github.com/qiantongtech/qKnowproduct
- VulnCheck Advisory: qKnow through 2.4.3 Missing Authentication via /flyflow Workflow Endpointsthird-party-advisory
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