PT-2026-59239

Summary The LangSmith SDK's distributed tracing feature is vulnerable to Server-Side Request Forgery via malicious HTTP headers. An attacker can inject arbitrary api url values through the baggage header, causing the SDK to exfiltrate sensitive trace data to attacker-controlled endpoints. ---...

CVE-2026-25528

LangSmith Client SDKs provide SDK's for interacting with the LangSmith platform. The LangSmith SDK's distributed tracing feature is vulnerable to Server-Side Request Forgery via malicious HTTP headers. An attacker can inject arbitrary apiurl values through the baggage header, causing the SDK to...