Tenant Isolation Bypass in jshERP by jishenghua
CVE-2026-94494

5.3MEDIUM

Key Information:

Vendor

Jishenghua

Status
Jsherp
Vendor
CVE Published:
21 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-94494?

The jshERP application, up to version 3.6, contains a vulnerability that allows authenticated users to bypass tenant isolation. This flaw enables these users to access sensitive records of other tenants through the GET /tenant/info endpoint. By iterating the primary key, attackers can enumerate various details such as login names, validity dates, user quotas, and the enabled state of users across all tenants on the platform, leading to unauthorized data access and potential security breaches.

Affected Version(s)

jshERP 0 <= 3.6

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-94494 - Proof of Concept

References

https://github.com/LinYuanyi1/cve-request-poc/blob/master...
exploit
https://github.com/jishenghua/jshERP/blob/v3.6/jshERP-boo...
technical-description
https://github.com/jishenghua/jshERP
product

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mingsheng Lin
.