CVE-2026-41310

OpenTelemetry.Exporter.Zipkin is the .NET Zipkin exporter for OpenTelemetry. In versions 1.15.2 and earlier, the Zipkin exporter remote endpoint cache accepts unbounded key growth derived from span attributes. In high-cardinality scenarios, a process using Zipkin export for client or producer spa...

CVE-2026-41310

OpenTelemetry.Exporter.Zipkin for .NET (Zipkin exporter) has an unbounded remote endpoint cache in versions up to 1.15.2, where keys derived from span attributes can grow without bound in high-cardinality scenarios, leading to memory growth and degraded availability. The issue is addressed in ver...

Allocation of Resources Without Limits or Throttling

Overview OpenTelemetry.Exporter.Zipkin is a Zipkin Exporter for OpenTelemetry .NET. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to unbounded growth of the remote endpoint cache derived from span attributes. An attacker can cause...

PT-2026-35933

Name of the Vulnerable Software and Affected Versions OpenTelemetry.Exporter.Zipkin versions prior to 1.15.3 Description The remote endpoint cache in the Zipkin exporter accepts unbounded key growth derived from span attributes. In high-cardinality scenarios—situations where there is a large numb...