CVE-2026-41182

LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. Prior to version 0.5.19 of the JavaScript SDK and version 0.7.31 of the Python SDK, the LangSmith SDK's output redaction controls (hideOutputs in JS, hide_outputs in Python) do not apply to streaming token events. When an LLM run produces streaming output, each chunk is recorded as a new_token event containing the raw token value. These events bypass the redaction pipeline entirely — prepareRunCreateOrUpdateInputs (JS) and _hide_run_outputs (Python) only process the inputs and outputs fields on a run, never the events array. As a result, applications relying on output redaction to prevent sensitive LLM output from being stored in LangSmith will still leak the full streamed content via run events. Version 0.5.19 of the JavaScript SDK and version 0.7.31 of the Python SDK fix the issue.
Configurations

No configuration.

History

23 Apr 2026, 02:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-04-23 02:16

Updated : 2026-05-29 16:14


NVD link : CVE-2026-41182

Mitre link : CVE-2026-41182

CVE.ORG link : CVE-2026-41182


JSON object : View

Products Affected

No product.

CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-359

Exposure of Private Personal Information to an Unauthorized Actor

CWE-532

Insertion of Sensitive Information into Log File