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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-44213

OpenTelemetry.Exporter.Instana bypasses TLS certificate validation when a proxy is configured

Description

The OpenTelemetry.Exporter.Instana exports telemetry to Instana backend. Prior to 1.1.0, the OpenTelemetry.Exporter.Instana NuGet package does not validate HTTPS/TLS certificates are valid when sending telemetry to a configured Instana back-end when a proxy is configured using the INSTANA_ENDPOINT_PROXY environment variable. If a network attacker can Man-in-the-Middle (MitM) the proxy connection, all OpenTelemetry telemetry data and the Instana API key are exposed to the attacker. This vulnerability is fixed in 1.1.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

open-telemetry opentelemetry-dotnet-contrib

  • < 1.1.0affected

References