CVE-2026-81870
Description
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.
How to fix
- go.opentelemetry.io/otel/sdk1.45.0 or later
- go.opentelemetry.io/otel/exporters/otlp/otlptrace1.45.0 or later
- go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc1.45.0 or later
- go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp1.45.0 or later
- go.opentelemetry.io/otel/exporters/zipkin1.45.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| go.opentelemetry.io/otel/sdkGo | 1.5.0 ≤ v < 1.45.0 | 1.45.0 |
| go.opentelemetry.io/otel/exporters/otlp/otlptraceGo | 1.5.0 ≤ v < 1.45.0 | 1.45.0 |
| go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpcGo | 1.5.0 ≤ v < 1.45.0 | 1.45.0 |
| go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttpGo | 1.5.0 ≤ v < 1.45.0 | 1.45.0 |
| go.opentelemetry.io/otel/exporters/zipkinGo | 1.5.0 ≤ v < 1.45.0 | 1.45.0 |
| microsoft azl3_azurelinux-image-tools_1.6.0-2 | No range specified | — |
| microsoft azl3_cert-manager_1.12.15-12 | No range specified | — |
| microsoft azl3_containerd2_2.2.4-8 | No range specified | — |
| microsoft azl3_docker-buildx_0.14.0-16 | No range specified | — |
| microsoft azl3_etcd_3.5.33-1 | No range specified | — |
| microsoft azl3_flannel_0.24.2-31 | No range specified | — |
| microsoft azl3_kata-containers-cc_3.15.0.aks0-20 | No range specified | — |
| microsoft azl3_kube-vip-cloud-provider_0.0.10-8 | No range specified | — |
| microsoft azl3_moby-containerd-cc_1.7.7-16 | No range specified | — |
| microsoft azl3_moby-engine_25.0.3-20 | No range specified | — |
| microsoft azl3_prometheus-adapter_0.12.0-9 | No range specified | — |
| microsoft azl3_azurelinux-image-tools_1.6.0-3 | No range specified | — |
| microsoft azl3_docker-compose_2.27.0-14 | No range specified | — |
| microsoft azl3_flannel_0.24.2-32 | No range specified | — |
| microsoft azl3_kata-containers-cc_3.15.0.aks0-21 | No range specified | — |
| microsoft azl3_keda_2.14.1-19 | No range specified | — |
| microsoft azl3_kubernetes_1.30.10-30 | No range specified | — |
| microsoft azl3_cloud-provider-kubevirt_0.5.1-7 | No range specified | — |
| microsoft azl3_cri-tools_1.32.0-7 | No range specified | — |
| microsoft azl3_docker-compose_2.27.0-13 | No range specified | — |
| microsoft azl3_kata-containers_3.32.0.kata0-5 | No range specified | — |
| microsoft azl3_keda_2.14.1-18 | No range specified | — |
| microsoft azl3_kubernetes_1.30.10-29 | No range specified | — |
| microsoft azl3_cert-manager_1.12.15-14 | No range specified | — |
| microsoft azl3_cloud-provider-kubevirt_0.5.1-9 | No range specified | — |
| microsoft azl3_containerd2_2.3.4-1 | No range specified | — |
| microsoft azl3_cri-tools_1.32.0-8 | No range specified | — |
| microsoft azl3_docker-buildx_0.14.0-17 | No range specified | — |
| microsoft azl3_kata-containers_4.1.0.kata0-1 | No range specified | — |
| microsoft azl3_kube-vip-cloud-provider_0.0.10-10 | No range specified | — |
| microsoft azl3_moby-containerd-cc_1.7.7-17 | No range specified | — |
| microsoft azl3_prometheus-adapter_0.12.0-10 | No range specified | — |
| microsoft azl3_cloud-provider-kubevirt_0.5.1-10 | No range specified | — |
| microsoft azl3_containerd2_2.3.7-1 | No range specified | — |
| microsoft azl3_cri-tools_1.32.0-10 | No range specified | — |
| microsoft azl3_kata-containers_4.1.0.kata1-2 | No range specified | — |
| microsoft azl3_kata-containers-cc_3.15.0.aks0-23 | No range specified | — |
| microsoft azl3_kubernetes_1.30.10-32 | No range specified | — |
| microsoft azl3_moby-containerd-cc_1.7.7-19 | No range specified | — |
| microsoft azl3_moby-engine_25.0.18-1 | No range specified | — |
| microsoft azl3_prometheus-adapter_0.12.0-12 | No range specified | — |
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