Missing authentication in qKnow exposes user and department data
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
qiantongtech qKnow through 2.4.3 is missing authentication on its /flyflow workflow integration endpoints (CWE-306). An unauthenticated remote attacker can enumerate user phone numbers, roles, and department structure by sending sequential userId requests.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
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 |
|---|---|---|---|---|---|
| qiantongtech | qKnow | up to 2.4.3 | — | No fix listed | CNA |
- qKnow Vendorqiantongtech Affected up to 2.4.3 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for qKnow.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-16 Threatist record created from CVE-2026-111694
- 2026-10-16 Alias added: GHSA-wg5c-63h4-vxh8
- 2026-10-18 Priority changed: MEDIUM → LOW
- 2026-10-21 CISA SSVC decision points changed
- 2026-10-21 Priority changed: LOW → HIGH
References
Other 3
- https://github.com/qiantongtech/qKnow/blob/v2.4.3/qknow-framework/qknow-security/src/main/java/tech/qiantong/qknow/security/config/SecurityConfig.java#L133
- 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-L99
- https://github.com/qiantongtech/qKnow
Sources
- CVE-2026-111694 · CVE Program
- CVE-2026-111694 · NVD
- FIRST EPSS
- GHSA-wg5c-63h4-vxh8 · GitHub Advisory Database · CC BY 4.0
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