Insecure Direct Object Reference in Lamp-Boot OAuth Module
CVE-2026-110763

5.3MEDIUM

Key Information:

Vendor

Zuihou

Status
Lamp-boot
Vendor
CVE Published:
14 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-110763?

The Lamp-Boot OAuth module is vulnerable to an insecure direct object reference, specifically within the /anyone/findDeptByCompany endpoint. This flaw allows authenticated, low-privilege users to bypass URI permission checks, enabling them to enumerate employeeId values sequentially. As a result, they can access sensitive department membership information for every employee within the same tenant, raising significant privacy and security concerns.

Affected Version(s)

lamp-boot 4.16.0-java17 <= 4.21.2-java17

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-2026-110763 - Proof of Concept

References

https://hackmd.io/@hieuPenguinnn/lamp-boot-finddeptbycomp...
technical-descriptionexploit
https://github.com/zuihou/lamp-boot/blob/ddef8c71de970b91...
technical-description
https://github.com/zuihou/lamp-boot
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

hieuPenguinnn
.