GHSA-77WQ-646F-JRM2: keras PyPI

Vulnerability summary

GHSA-77WQ-646F-JRM2 is a high (CVSS 7.3) vulnerability in keras PyPI.

Timeline

1. 19-09-2025
   PublishedVulnerability first disclosed.
2. 19-09-2025
   Last modifiedVulnerability information updated.

Description

Duplicate Advisory: The Keras `Model.load_model` method **silently** ignores `safe_mode=True` and allows arbitrary code execution when a `.h5`/`.hdf5` file is loaded. ### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-36rr-ww3j-vrjv. This link is maintained to preserve external references. ### Original Description The Keras Model.load_model method can be exploited to achieve arbitrary code execution, even with safe_mode=True. One can create a specially crafted .h5/.hdf5 model archive that, when loaded via Model.load_model, will trigger arbitrary code to be executed. This is achieved by crafting a special .h5 archive file that uses the Lambda layer feature of keras which allows arbitrary Python code in the form of pickled code. The vulnerability comes from the fact that the safe_mode=True option is not honored when reading .h5 archives. Note that the .h5/.hdf5 format is a legacy format supported by Keras 3 for backwards compatibility.

No weakness data has been published for this record.