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CVE-2026-79784— Vocos through 0.1.0 Arbitrary Code Execution via Unrestricted class_path in Model Configuration

Quick assessment

Affected
gemelo-ai vocos
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vocos 会根据配置文件实例化一个由其命名的类，但未限制可以实例化的类类型。在 中的 函数会从配置中获取 值，将其拆分为模块名和属性名，通过 导入该模块，然后使用 解析该属性，并以 的形式调用该对象，其中 来自配置中的 映射。由于没有对点分路径设置白名单限制，攻击者可以在配置中指定任意可导入的可调用对象，并提供其调用所需的参数。 Vocos 的 方法会对 、 和 这三个条目分别执行此逻辑；而 方法则可通过远程文件触发该逻辑：它会从用户指定的 Hugging Face 仓库下载 文件，并将其直接传入 。因此，如果用

CVSS 8.8 · High

Possible ATT&CK Techniques 1 AI

T1195 · Supply Chain Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
gemelo-ai vocos ≤ 0.1.0 affected
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I. Basic Information for CVE-2026-79784

Vulnerability Information
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Vulnerability Title
Vocos through 0.1.0 Arbitrary Code Execution via Unrestricted class_path in Model Configuration
Source: CVE Program / CVE List V5
Vulnerability Description
Vocos instantiates a class named by a configuration file without restricting which class may be named. instantiate_class in vocos/pretrained.py takes the class_path value from the configuration, splits it into a module and an attribute, imports the module with __import__, resolves the attribute with getattr, and calls the result as args_class(*args, **kwargs) where kwargs is the config's own init_args mapping. No allowlist constrains the dotted path, so a configuration may name any importable callable and supply the arguments it is called with. Vocos.from_hparams reaches this for each of the feature_extractor, backbone and head entries, and Vocos.from_pretrained reaches it with a remote file: it downloads config.yaml from a caller-named Hugging Face repository and passes it straight to from_hparams. Loading a model from a repository the user does not control therefore executes code of the repository owner's choosing in the loading process. The neighbouring torch.load of the downloaded weights is a separate matter and is constrained on PyTorch releases that default weights_only to true, which leaves this path as the reachable one.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用外部可控制的输入来选择类或代码(不安全的反射)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
gemelo-ai vocos 0 ~ 0.1.0 -

II. Public POCs for CVE-2026-79784

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 10539 chars
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III. Intelligence Information for CVE-2026-79784

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Vendor Advisories for CVE-2026-79784 (1)

Security Blog Posts for CVE-2026-79784 (1)

Other References for CVE-2026-79784 (2)

IV. Related Vulnerabilities

Same weakness: CWE-470

V. Comments for CVE-2026-79784

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