Deserialization Vulnerability in piskvorky gensim Product
CVE-2026-94091

5.1MEDIUM

Key Information:

Vendor

Piskvorky

Status
Gensim
Vendor
CVE Published:
20 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-94091?

A vulnerability in piskvorky gensim versions up to 4.4.0 has been identified within the Model Loader component, specifically in the Load function of gensim/utils.py. This issue allows an attacker to manipulate the argument fname, leading to deserialization attacks. The exploit can be executed remotely, posing significant security risks. Despite the public disclosure of this vulnerability and the availability of the exploit online, the maintainer has not provided a fix or a comment in response to the issue. The last code update was noted prior to the vulnerability report, leaving the unsafe pickle.load in SaveLoad.load exposed in the current development branch.

Affected Version(s)

gensim 4.0

gensim 4.1

gensim 4.2

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-2026-94091 - Proof of Concept

References

https://vuldb.com/vuln/408020
vdb-entrytechnical-description
https://vuldb.com/vuln/408020/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-94091
third-party-advisory

CVSS V4

Score:
5.1
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

meraklbz (VulDB User)
VulDB CNA Team
.