{"id":"CVE-2026-79784","summary":"Vocos through 0.1.0 Arbitrary Code Execution via Unrestricted class_path in Model Configuration","details":"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.","modified":"2026-08-28T11:30:16.410217402Z","published":"2026-08-25T15:16:12.456Z","database_specific":{"cwe_ids":["CWE-470"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79784.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79784.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-79784"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/vocos-through-arbitrary-code-execution-via-unrestricted-class-path-in-model-configuration"},{"type":"REPORT","url":"https://github.com/gemelo-ai/vocos/issues/76"},{"type":"PACKAGE","url":"https://github.com/gemelo-ai/vocos"},{"type":"PACKAGE","url":"https://pypi.org/project/vocos/"},{"type":"ARTICLE","url":"https://github.com/gemelo-ai/vocos/blob/main/vocos/pretrained.py"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gemelo-ai/vocos","events":[{"introduced":"0"},{"last_affected":"11b4628853c9e79dbc4577b01ecb02cfbc78255d"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"0.1.0"}]}}],"versions":["v0.1.0","v0.0.4","v0.0.3","v0.0.2","v0.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-79784.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","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"}]}