piskvorky gensim Model Loader utils.py load deserialization (CVE-2026-94091) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-94091

piskvorky gensim Model Loader utils.py load deserialization

Answer in brief

CVE-2026-94091 records a Unknown severity vulnerability in piskvorky gensim Model Loader utils.py load deserialization. The current sources do not mark it as known exploited. The current feed maps piskvorky/gensim (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 20, 2026Updated Sep 20, 2026Source checked Sep 20, 2026First seen by HOL Sep 20, 2026Material review Sep 20, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps piskvorky/gensim (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
piskvorky/gensimgeneric	4.0 \|\| 4.1 \|\| 4.2 \|\| 4.3 \|\| 4.4.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for piskvorky/gensim.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 20, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.