5.3
Medium
CVE-2026-41310 OpenTelemetry.Exporter.Zipkin is the .NET Zipkin exporter for OpenTelemetry
Description
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 spans could experience avoidable memory growth under sustained unique remote endpoint values, increasing process memory usage over time and degrading availability. This issue is fixed in version 1.15.3, which introduces a bounded, thread-safe LRU cache for remote endpoints with a fixed maximum size.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| opentelemetry-dotnet 1.15 | earliest → 1.15.2 | No fix stated |
Other CVEs of opentelemetry-dotnet
The 8 CVEs of opentelemetry-dotnet →
CVE-2026-42191
OpenTelemetry.Exporter.OpenTelemetryProtocol is the OTLP (OpenTelemetry Protocol) exporter implementation
6.5
Medium
CVE-2026-41078
OpenTelemetry dotnet is a dotnet telemetry framework
5.9
Medium
CVE-2026-40894
OpenTelemetry dotnet is a dotnet telemetry framework
5.3
Medium
CVE-2026-40891
OpenTelemetry dotnet is a dotnet telemetry framework
5.3
Medium