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CVE-2026-40894

5.3 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 6

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.3 · opentelemetryNVD modified 2026-10-26 22:10

Affected (CPE criteria) 3

  • cpe:2.3:a:opentelemetry:opentelemetry:*:*:*:*:*:.net:*:*
  • cpe:2.3:a:opentelemetry:opentelemetry.api:*:*:*:*:*:.net:*:*
  • cpe:2.3:a:opentelemetry:opentelemetry.extensions.propagators:*:*:*:*:*:*:*:*

References 6