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TI-2026-63307 Aliases CVE-2026-94091GHSA-9h85-xr59-9fh8

piskvorky gensim Model Loader utils.py load deserialization

Priority MEDIUM 56CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.

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 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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00337 27th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
piskvorkygensim4.0; 4.1; 4.2; 4.3; 4.4.0—No fix listedCNA
  • gensim Vendorpiskvorky Affected 4.0; 4.1; 4.2; 4.3; 4.4.0 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:piskvorky:gensim:*:*:*:*:*:*:*:*——piskvorky
  • cpe:2.3:a:piskvorky:gensim:*:*:*:*:*:*:*:* Versions — — ·piskvorky

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-94091
  2. 2026-10-03 Alias added: GHSA-9h85-xr59-9fh8

References

Sources