Vulnerability-Lookup

CVE-2026-58474 (GCVE-0-2026-58474)

Vulnerability from cvelistv5 – Published: 2026-08-26 17:49 – Updated: 2026-08-29 11:47 X_Open Source

Title

whichllm < 0.5.16 Code Injection via run and snippet commands

Summary

whichllm before 0.5.16 contains a code injection vulnerability in the run and snippet commands that allows a remote attacker who controls a HuggingFace repository to achieve arbitrary code execution by crafting a malicious GGUF filename containing double quotes or other special characters. The script generation function in cli.py interpolates HuggingFace-derived values, including GGUF variant filenames from the Hub API siblings rfilename field, directly into Python source code without escaping, allowing the crafted filename to break out of the generated string literal and execute injected code on the user's machine before any model download occurs.

Severity

8.6 (High)


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

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-26 18:54 UTC

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

VulnCheck mitre root

References

4 references

URL	Tags
https://github.com/Andyyyy64/whichllm/releases/ta…	release-notes
https://github.com/Andyyyy64/whichllm/pull/147	issue-trackingpatch
https://github.com/Andyyyy64/whichllm/commit/77e8…	patch
https://www.vulncheck.com/advisories/whichllm-cod…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Andyyyy64	whichllm	Affected: 0 , < 0.5.16 (semver)	guessed

Date Public

2026-07-19 00:00

Credits

hannibal-lee hayato1121

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-58474

Vulnerability from fkie_nvd - Published: 2026-08-26 18:16 - Updated: 2026-08-26 20:17

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/Andyyyy64/whichllm/commit/77e8dc9e8b45212c694d631d758623e17a00859e
	disclosure@vulncheck.com	https://github.com/Andyyyy64/whichllm/pull/147
	disclosure@vulncheck.com	https://github.com/Andyyyy64/whichllm/releases/tag/v0.5.16
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/whichllm-code-injection-via-run-and-snippet-commands

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/Andyyyy64/whichllm/pull/147"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/Andyyyy64/whichllm/releases/tag/v0.5.16"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/whichllm-code-injection-via-run-and-snippet-commands"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-HFPC-7MR4-P297

Vulnerability from github – Published: 2026-08-26 18:31 – Updated: 2026-08-26 18:31

Details

Severity

8.8 (High)


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

8.6 (High)


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

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-58474"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-26T18:16:42Z",
    "severity": "HIGH"
  },
  "details": "whichllm before 0.5.16 contains a code injection vulnerability in the run and snippet commands that allows a remote attacker who controls a HuggingFace repository to achieve arbitrary code execution by crafting a malicious GGUF filename containing double quotes or other special characters. The script generation function in cli.py interpolates HuggingFace-derived values, including GGUF variant filenames from the Hub API siblings rfilename field, directly into Python source code without escaping, allowing the crafted filename to break out of the generated string literal and execute injected code on the user\u0027s machine before any model download occurs.",
  "id": "GHSA-hfpc-7mr4-p297",
  "modified": "2026-08-26T18:31:57Z",
  "published": "2026-08-26T18:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58474"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Andyyyy64/whichllm/pull/147"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Andyyyy64/whichllm/commit/77e8dc9e8b45212c694d631d758623e17a00859e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Andyyyy64/whichllm/releases/tag/v0.5.16"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/whichllm-code-injection-via-run-and-snippet-commands"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2026-58474 (GCVE-0-2026-58474)

FKIE_CVE-2026-58474

GHSA-HFPC-7MR4-P297

Tags

Sightings

Nomenclature