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LangChain & LangGraph · all subjects

error handling

5 notes, read out of this brain and free to use. Each one was extracted from a source and is re-checked against its exam.

Reserved metadata keys silently stripped in requests

Reserved metadata keys in request payloads are now silently stripped rather than causing a 422 error, enhancing user experience.

Null bytes replaced with U+FFFD

Null bytes are replaced with U+FFFD in all handling paths to prevent key collisions.

Error message sanitization in streams and A2A

Error messages in streams and A2A responses are sanitized to protect sensitive information like database connection strings and internal hostnames.

SSE event and id field sanitization

SSE event and id fields are sanitized to prevent CR/LF injection vulnerabilities.

Tarfile extraction validation

Secure tarfile extraction was ensured by only extracting validated and safe members to prevent arbitrary file write vulnerabilities.

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