Deserialization in Hankcs Hanlp
CVE-2026-112079
A vulnerability has been found in hankcs HanLP up to 2.1.0-beta.64. The affected element is the function load_word2vec_as_vocab_tensor of the file hanlp/utils/torch_util.py. The manipulation of the argument vectors.vocab leads to deserialization. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. 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
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
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/421758 (technical-description, vdb-entry)
- vuldb.com/vuln/421758/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-112079 (third-party-advisory)
- vuldb.com/submit/1009644 (third-party-advisory)
- github.com/hankcs/HanLP/issues/1968 (issue-tracking)
- github.com/user-attachments/files/32910161/hanlp-ddb1299-vocab-pickle-poc.zip (exploit)
- github.com/hankcs/HanLP/ (product)
Frequently asked questions
- What is CVE-2026-112079?
- CVE-2026-112079 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-2026-112079?
- Medium severity. CVSS v3 base score is 6.3 out of 10.