CVE-2026-40894
Last modified
CVE-2026-40894 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.46% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Opentelemetry | Opentelemetry | >= 0.5.0, < 1.15.3 |
| Opentelemetry | Opentelemetry.Api | >= 0.5.0, < 1.15.3 |
| Opentelemetry | Opentelemetry.Extensions.Propagators | > 1.3.0, < 1.15.3 |
References
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/1048Issue Tracking, Patch
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/3244Issue Tracking, Patch
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/3309Issue Tracking, Patch
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/533Issue Tracking, Patch
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/7061Issue Tracking, Patch
- https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-g94r-2vxg-569jMitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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