Deserialization in Hankcs Hanlp
CVE-2026-112081
A vulnerability was determined in hankcs HanLP up to 2.1.0-beta.64. This affects the function hanlp.load of the file plugins/hanlp_common/hanlp_common/reflection.py of the component Model Config Loading. This manipulation of the argument classpath causes deserialization. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (25.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Hankcs Hanlp — versions 2.1.0-beta.0, 2.1.0-beta.1, 2.1.0-beta.10
Weakness classification (CWE)
References
- vuldb.com/vuln/421760 (technical-description, vdb-entry)
- vuldb.com/vuln/421760/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-112081 (third-party-advisory)
- vuldb.com/submit/1009708 (third-party-advisory)
- github.com/hankcs/HanLP/issues/1969 (issue-tracking)
- github.com/user-attachments/files/32911743/poc.zip (exploit)
- github.com/hankcs/HanLP/ (product)
Frequently asked questions
- What is CVE-2026-112081?
- CVE-2026-112081 is a medium-severity vulnerability in Hankcs Hanlp, classified under Improper Input Validation. CVSS score: 6.3/10. Published 2026-10-19.
- How severe is CVE-2026-112081?
- Medium severity. CVSS v3 base score is 6.3 out of 10.