CVE-2026-93348 - Unsloth Zoo Code Injection via model_type in config.json

CVE-2026-93348 - Unsloth Zoo Code Injection via model_type in config.json

https://cvefeed.io/rssfeed/latest.atom / Mon, 09/28/2026 - 19:49
CVE ID :CVE-2026-93348
Published : Sept. 28, 2026, 4:17 p.m. | 55 minutes ago
Description :Unsloth Zoo versions 2025.9.9 before 2026.8.14, as implemented in Unsloth 2025.9.9 through 2026.8.19, contains a code injection vulnerability in the model-loading compile path where the get_transformers_model_type() function in hf_utils.py collects model_type values from nested model configurations without enforcing a character allowlist, allowing newlines and arbitrary Python source to survive normalization. Attackers can embed a newline in a nested model_type value within a malicious model's config.json to terminate the generated import statement and execute arbitrary Python code via exec() in unsloth_compile_transformers(), achieving remote code execution as the loading user when the model is loaded for training or inference.
Severity: 8.6 | HIGH
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