whichllm < 0.5.16 Code Injection via run and snippet commands (CVE-2026-58474) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-58474

whichllm < 0.5.16 Code Injection via run and snippet commands

Answer in brief

CVE-2026-58474 records a Unknown severity vulnerability in whichllm < 0.5.16 Code Injection via run and snippet commands. The current sources do not mark it as known exploited. The current feed maps Andyyyy64/whichllm (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 Aug 26, 2026Updated Aug 26, 2026Source checked Aug 26, 2026First seen by HOL Aug 26, 2026Material review Aug 26, 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: Available

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 Andyyyy64/whichllm (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Andyyyy64/whichllmgeneric	>=0 <0.5.16	0.5.16

Recommended response

Check inventory. Check lockfiles and deployed manifests for Andyyyy64/whichllm.
Review the reported fix. Update Andyyyy64/whichllm to 0.5.16 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 26, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.