Live › vulnerability › CVE-2026-81870
Go to dashboardOpenTelemetry-Go's tracer provider writes an Info-level diagnostic log that includes exporter endpoint URLs and Zipkin collector URLs. Anyone who can read those logs can learn internal collector addresses and any credentials embedded in Zipkin URLs.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:13 UTC, 0h before NVD. All times on this page are UTC.
| Product | Ecosystem | Affected | Fixed in |
|---|
| go.opentelemetry.io/otel/exporters/otlp/otlptrace | go | >= 1.5.0, < 1.45.0 | 1.45.0 |
| go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc | go | >= 1.5.0, < 1.45.0 | 1.45.0 |
| go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp | go | >= 1.5.0, < 1.45.0 | 1.45.0 |
| go.opentelemetry.io/otel/exporters/zipkin | go | >= 1.5.0, < 1.45.0 | 1.45.0 |
| go.opentelemetry.io/otel/sdk | go | >= 1.5.0, < 1.45.0 | 1.45.0 |
1.45.01.45.0 or laterEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
OpenTelemetry-Go is the Go implementation of OpenTelemetry. From version 1.5.0 to 1.44.0, sdk/trace.NewTracerProvider emits a TracerProvider created internal Info-level diagnostic event whose MarshalLog implementations recursively include span processor, exporter, and client configuration. Applications that call otel.SetLogger to enable OpenTelemetry internal Info logging can therefore record OTLP gRPC and HTTP collector endpoints, the OTLP HTTP Insecure flag, and complete Zipkin collector URLs. A person or system with access to those logs can learn internal collector topology and can recover credentials or tokens embedded in Zipkin URL user information or query strings. The default OpenTelemetry logger does not emit the event, and this path does not log OTLP authentication headers, TLS key material, or span payloads. This issue is fixed in version 1.45.0.
This page as .md · .json · in your agent: get_signal("CVE-2026-81870")
Go Vulnerability Database, CC-BY 4.0 · EPSS scores by FIRST, used with attribution · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.