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5.3 Medium

CVE-2026-40894 OpenTelemetry dotnet is a dotnet telemetry framework

Description

OpenTelemetry dotnet is a dotnet telemetry framework. In OpenTelemetry.Api 0.5.0-beta.2 to 1.15.2 and OpenTelemetry.Extensions.Propagators 1.3.1 to 1.15.2, The implementation details of the baggage, B3 and Jaeger processing code in the OpenTelemetry.Api and OpenTelemetry.Extensions.Propagators NuGet packages can allocate excessive memory when parsing which could create a potential denial of service (DoS) in the consuming application. This vulnerability is fixed in 1.15.3.

Affected products and versions

Product Affected versions Fixed in
opentelemetry-dotnet 0.5 0.5.0-beta.2 → < 1.15.3 1.15.3
OpenTelemetry.Api 0.5 0.5.0-beta.2 → < 1.15.3 1.15.3
OpenTelemetry.Extensions.Propagators 1.3 1.3.1 → < 1.15.3 1.15.3

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-2026-41078 OpenTelemetry dotnet is a dotnet telemetry framework 5.9 Medium CVE-2026-40891 OpenTelemetry dotnet is a dotnet telemetry framework 5.3 Medium
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