Vulnerability · Published Mar 5, 2025 · Assigned by GitHub_M
CVE-2025-27513OpenTelemetry .NET has a Denial of Service (DoS) Vulnerability in API Package
High 7.5
In plain English
A high-severity resource allocation without limits in opentelemetry-dotnet from open-telemetry. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
OpenTelemetry dotnet is a dotnet telemetry framework. A vulnerability in OpenTelemetry.Api package 1.10.0 to 1.11.1 could cause a Denial of Service (DoS) when a tracestate and traceparent header is received. Even if an application does not explicitly use trace context propagation, receiving these headers can still trigger high CPU usage. This issue impacts any application accessible over the web or backend services that process HTTP requests containing a tracestate header. Application may experience excessive resource consumption, leading to increased latency, degraded performance, or downtime. This vulnerability is fixed in 1.11.2.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| NuGet | opentelemetry.api | 1.11.2 | GHSA-8785-wc3w-h8q6 |
| NuGet | opentelemetry.api | no fix listed | GHSA-8785-wc3w-h8q6 |
| NuGet | opentelemetry.api | no fix listed | GHSA-8785-wc3w-h8q6 |
| NuGet | opentelemetry.api | no fix listed | GHSA-8785-wc3w-h8q6 |
| NuGet | opentelemetry.api | no fix listed | GHSA-8785-wc3w-h8q6 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| open-telemetry | opentelemetry-dotnet | >= 1.10.0-beta.1, < 1.11.2 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H