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keras-from-config-external-vocab-poc-20260707 – AI Model by htdy7703 | AlphaNeural AI

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keras-from-config-external-vocab-poc-20260707

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Keras `from_config()` External Vocabulary PoC

This PoC is intentionally narrow and matches the verified behavior on built keras 3.16.0.

What it shows:

a crafted .keras archive can carry a StringLookup config whose vocabulary field points to a local path such as /etc/hostname
default keras.saving.load_model() rejects that external vocabulary path under safe mode
direct keras.layers.StringLookup.from_config() on the same extracted config still reads the local file

What it does not show:

a default .keras load_model() bypass
code execution

Files

repro.py: builds a small .keras model, mutates its StringLookup config, and demonstrates both behaviors

Verified Runtime

keras 3.16.0
TensorFlow CPU 2.21.0

Example

bash

PYTHONPATH=/mnt/data/huntr/.pkginstall-keras:/mnt/data/huntr/.pydeps-keras \
KERAS_BACKEND=tensorflow \
/home/thun/.cache/codex-runtimes/codex-primary-runtime/dependencies/python/bin/python3 \
repro.py