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5.9 Medium

CVE-2026-41078 OpenTelemetry dotnet is a dotnet telemetry framework

Description

OpenTelemetry dotnet is a dotnet telemetry framework. In 1.6.0-rc.1 and earlier, OpenTelemetry.Exporter.Jaeger may allow sustained memory pressure when the internal pooled-list sizing grows based on a large observed span/tag set and that enlarged size is reused for subsequent allocations. Under high-cardinality or attacker-influenced telemetry input, this can increase memory consumption and potentially cause denial of service. There is no plan to fix this issue as OpenTelemetry.Exporter.Jaeger was deprecated in 2023.

Affected products and versions

Product Affected versions Fixed in
opentelemetry-dotnet 1.6 earliest → 1.6.0-rc.1 No fix stated
OpenTelemetry.Exporter.Jaeger 1.6 earliest → 1.6.0-rc.1 No fix stated

References

Timeline

  1. Published
  2. Last modified

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-2026-41310 OpenTelemetry.Exporter.Zipkin is the .NET Zipkin exporter for OpenTelemetry 5.3 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
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