---
id: CVE-2026-94091
title: A weakness has been identified in piskvorky gensim up to 4.4.0
summary: >-
  A weakness has been identified in piskvorky gensim up to 4.4.0. The impacted
  element is the function Load of the file gensim/utils.py of the component
  Model Loader. This manipulation of the argument fname causes deserialization.
  It is po…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L'
cwe:
  - CWE-20
  - CWE-502
vendor: piskvorky
product: gensim
affected:
  - gensim 4.0
  - gensim 4.1
  - gensim 4.2
  - gensim 4.3
  - gensim 4.4.0
published: '2026-09-20'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T13:33:33.387'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94091'
references:
  - url: 'https://github.com/piskvorky/gensim/'
    label: cna@vuldb.com
  - url: 'https://github.com/piskvorky/gensim/issues/3663'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-94091'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/952644'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/408020'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/408020/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00337
epssPercentile: 0.24349
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-21T10:57:26.650011Z'
ingestedAt: '2026-09-20T22:27:33.231Z'
---

## Overview

A weakness has been identified in piskvorky gensim up to 4.4.0. The impacted element is the function Load of the file gensim/utils.py of the component Model Loader. This manipulation of the argument fname causes deserialization. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Maintainer closed #3663 same-day with no comment, PR, or fix; repo's last push (2025-11-01) predates the report, so the unsafe pickle.load in SaveLoad.load remains unguarded at develop HEAD.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.