Insecure Deserialization in HanLP Model Config Loading by hankcs
CVE-2026-112081

5.3MEDIUM

Key Information:

Vendor

Hankcs

Status
Hanlp
Vendor
CVE Published:
19 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-112081?

A vulnerability has been identified in the model configuration loading function of HanLP, specifically in the hanlp.load method located in the reflection.py file. This vulnerability arises from improper handling of the classpath argument, allowing attackers to perform insecure deserialization. The issue can be exploited remotely, posing a significant security risk. Although the vulnerability has been publicly disclosed, the developers have yet to respond adequately to the early reports made regarding this exploit.

Affected Version(s)

HanLP 2.1.0-beta.0

HanLP 2.1.0-beta.1

HanLP 2.1.0-beta.2

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-2026-112081 - Proof of Concept

References

https://vuldb.com/vuln/421760
vdb-entrytechnical-description
https://vuldb.com/vuln/421760/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-112081
third-party-advisory

CVSS V4

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

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

r1ck9 (VulDB User)
VulDB CNA Team
.