🛡️ CVE-2026-40894
🟡 CVSS 5.3 — Medium ✅ No Known Exploit CWE-789 NVD
5.3
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 5.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE CWE-789
Public Exploit ✅ No
Source NVD
Published 2026-04-23
Updated 2026-06-15
Modified 2026-04-28

Affected Packages

Software From version Fixed in
opentelemetry 0.5.0 1.15.3
opentelemetry.api 0.5.0-beta.2 1.15.3
opentelemetry.extensions.propagators 1.3.1 1.15.3

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