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[2.7] Update 2.7.2 release notes with CWE IDs for security fixes [skip ci] #4319

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chesterxgchen merged 1 commit into from
Mar 16, 2026
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[2.7] Update 2.7.2 release notes with CWE IDs for security fixes [skip ci] #4319

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3 changes: 2 additions & 1 deletion docs/release_notes/flare_272.rst
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Expand Up @@ -243,7 +243,8 @@ Bug Fixes
- Fixed TensorBoard analytics receiver import error.
- Improved error handling in FOBS serialization (raise exception on errors).
- Improved error messages in Client API.
- Fixed a path traversal vulnerability in ``FileRetriever`` by enforcing source-directory boundary checks on requested files.
- **Security fix (CWE-502, CVSS 8.8)**: Fixed a Remote Code Execution vulnerability in FOBS deserialization. The ``Packer.unpack()`` method failed to validate the attacker-controlled ``type_name`` before passing it to ``load_class()``, allowing authenticated participants to execute arbitrary Python code on the aggregation server. Fixed by introducing a ``BUILTIN_TYPES`` allowlist and validating ``type_name`` before class loading. A public API ``add_type_name_whitelist()`` is provided for runtime extension with custom types.
- **Security fix (CWE-22)**: Fixed a path traversal vulnerability in ``FileRetriever`` by enforcing source-directory boundary checks on requested files, preventing ``../`` traversal attacks from escaping the allowed directory.
- Updated PEFT/TRL integration for latest API compatibility.
- Updated HuggingFace LLM integration.
- Security dependency updates for web components.
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