Authenticated user-data disclosure via underprotected system APIs
Published Sep 4, 2026 · Updated Sep 4, 2026
Authorization bypass in JeecgBoot 3.9.2 and earlier allows remote authenticated users to read sensitive user data through system APIs. SystemApiController exposes queryAllUser, queryUsersByUsernames, queryUserById, and queryUsersByIds without fine-grained permission checks or complete response desensitization. Any valid JWT, including one held by a low-privileged account, exposes real names, phone numbers, email addresses, employee numbers, and role definitions.
Summary
What happened
Authorization bypass in JeecgBoot 3.9.2 and earlier allows remote authenticated users to read sensitive user data through system APIs. SystemApiController exposes queryAllUser, queryUsersByUsernames, queryUserById, and queryUsersByIds without fine-grained permission checks or complete response desensitization. Any valid JWT, including one held by a low-privileged account, exposes real names, phone numbers, email addresses, employee numbers, and role definitions.
The record
- CVE
- CVE-2026-78970
- Published
- Sep 4, 2026
- Updated
- Sep 4, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-862, T1087
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 4, 2026CVE publishedPublication date reported by the CVE source.
- Sep 4, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- SystemApiController user-data disclosure proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo