CVE-2026-59152

LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. Prior to 0.8.18, an attacker who can send an HTTP request to a server running the LangSmith SDK's TracingMiddleware can cause that server to read an arbitrary file from its local filesystem and upload the contents to...

CVE-2026-59152

The LangSmith Client SDKs’ TracingMiddleware had a vulnerability before version 0.8.18 where an HTTP request to a server running TracingMiddleware could trigger reading an arbitrary file from the server’s filesystem and uploading it to LangSmith as a trace attachment. This enables a trust-boundar...