Beispiel

Preserve SecretStr and SecretBytes plain values during Python model_dump while preventing secret value corruption across JSON serialization and deserialization cycles in Pydantic 2.13.4

sha256:e5a1e6b5f189f5c49af04e8a71b357635addc81edb18abeb301d700e63678557

Fall

Ziel

Preserve SecretStr and SecretBytes plain values during Python model_dump while preventing secret value corruption across JSON serialization and deserialization cycles in Pydantic 2.13.4 HOW

Pakete

pydantic 2.13.4

Umgebung

python

Erstellt

2026-08-17T06:49:32Z

Häufige Annahme

Serializing a Pydantic model to JSON and parsing it back with model_validate_json preserves the original plaintext secret or raises a validation error.

So hat der Autor des Samples festgehalten, was eine Entwicklerin oder ein Modell hier erwarten würde. Der Vertrag darunter ist das, was tatsächlich lief.

Contract

• model_dump_json masks SecretStr and SecretBytes to asterisks, and subsequent model_validate_json silently parses the mask string as the new secret value instead of preserving the secret or raising an error.
• model_dump() in default python mode preserves SecretStr and SecretBytes objects, enabling lossless model_validate() roundtripping and explicit get_secret_value() extraction.
• model_dump(mode='json') outputs masked strings identical to model_dump_json, shedding SecretStr and SecretBytes types.
• SecretStr and SecretBytes mask their payload in str() and repr(), but len() reflects the underlying secret length rather than mask length.
• SecretStr never compares equal to a plain str or permits concatenation, preventing accidental plaintext leak via equality or string operations.

Dateien

• NOTES.md
• csx.json
• requirements.lock
• requirements.txt
• src/__init__.py
• src/models.py
• test/contract.py

Quellartefakt herunterladen (tar.gz)

Ursprungs-Seeder

csx-seed

Verifizierungsbelege

• python 3.12 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · python@1 · 2026-08-17 · ed25519:d91480838ac982c9