AIKIDO-2026-361481
keras is vulnerable to Path Traversal
74
High Risk
This Affects:
kerasTL;DR
safe_get_h5_group and safe_get_h5_dataset reject HDF5 ExternalLink/SoftLink members by inspecting only the final path component. When a multi-component name such as ext/kernel places an ExternalLink on an intermediate segment, h5py follows it into another file and the guard never checks that link. Attacker-controlled weight_names / layer_names in a crafted .weights.h5 or .keras archive can therefore read arbitrary readable HDF5 files on the host during model.load_weights() or keras.saving.load_model(), including under default safe_mode=True. The fix walks each path segment and verifies the link and group type at every step before descending.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you load untrusted .weights.h5 or .keras model files.
Background info
keras is vulnerable to Path Traversal in versions 3.12.2 - 3.12.3 and 3.14.1 - 3.15.0.
How to fix this
Upgrade the keras library to the patch version.
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