Advisories for Golang/Go.opentelemetry.io/Otel/Exporters/Otlp/Otlptrace/Otlptracehttp package

2026

opentelemetry-go: OTLP HTTP exporters read unbounded HTTP response bodies

overview: this report shows that the otlp HTTP exporters (traces/metrics/logs) read the full HTTP response body into an in-memory bytes.Buffer without a size cap. this is exploitable for memory exhaustion when the configured collector endpoint is attacker-controlled (or a network attacker can mitm the exporter connection). severity HIGH not claiming: this is a remote dos against every default deployment. claiming: if the exporter sends traces to an untrusted collector endpoint …