Vulnerability-Lookup

GHSA-9H85-XR59-9FH8

Vulnerability from github – Published: 2026-09-21 00:30 – Updated: 2026-09-21 00:30

Details

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.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

2.0 (Low)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

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{
  "affected": [],
  "aliases": [
    "CVE-2026-94091"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-20T23:17:02Z",
    "severity": "LOW"
  },
  "details": "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\u0027s last push (2025-11-01) predates the report, so the unsafe pickle.load in SaveLoad.load remains unguarded at develop HEAD.",
  "id": "GHSA-9h85-xr59-9fh8",
  "modified": "2026-09-21T00:30:25Z",
  "published": "2026-09-21T00:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-94091"
    },
    {
      "type": "WEB",
      "url": "https://github.com/piskvorky/gensim/issues/3663"
    },
    {
      "type": "WEB",
      "url": "https://github.com/piskvorky/gensim"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-94091"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/952644"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/408020"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/408020/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-94091 (GCVE-0-2026-94091)

Vulnerability from cvelistv5 – Published: 2026-09-20 22:15 – Updated: 2026-09-21 10:58

Title

piskvorky gensim Model Loader utils.py load deserialization

Summary

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

5.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

5.5 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-21 10:57 UTC

CWE

CWE-502 - Deserialization
CWE-20 - Improper Input Validation

Assigner

VulDB mitre root

References

6 references

URL	Tags
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
https://vuldb.com/submit/952644	third-party-advisory
https://github.com/piskvorky/gensim/issues/3663	exploitissue-tracking
https://github.com/piskvorky/gensim/	product

Impacted products

1 product

Vendor	Product	Version
piskvorky	gensim	Affected: 4.0 Affected: 4.1 Affected: 4.2 Affected: 4.3 Affected: 4.4.0 cpe:2.3:a:piskvorky:gensim::::::::

Credits

meraklbz (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

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            "other": {
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                "id": "CVE-2026-94091",
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                  },
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-21T10:57:26.650011Z",
                "version": "2.0.3"
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          "shortName": "CISA-ADP"
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            "cpe:2.3:a:piskvorky:gensim:*:*:*:*:*:*:*:*"
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          ],
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              "version": "4.3"
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      "credits": [
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          "lang": "en",
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          "lang": "en",
          "type": "coordinator",
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      ],
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          "url": "https://vuldb.com/cve/CVE-2026-94091"
        },
        {
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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GHSA-9H85-XR59-9FH8

CVE-2026-94091 (GCVE-0-2026-94091)

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Sightings

Nomenclature

Related by attack behaviour