5.3

CVE-2026-40894

OpenTelemetry dotnet: Excessive memory allocation when parsing OpenTelemetry propagation headers

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
OpentelemetryOpentelemetry SwPlatform.net Version >= 0.5.0 < 1.15.3
OpentelemetryOpentelemetry.Api SwPlatform.net Version >= 0.5.0 < 1.15.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.46% 0.362
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE-789 Memory Allocation with Excessive Size Value

The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-g94r-2vxg-569j
Vendor Advisory
Mitigation
https://github.com/open-telemetry/opentelemetry-dotnet/pull/1048
Patch
Issue Tracking
https://github.com/open-telemetry/opentelemetry-dotnet/pull/3244
Patch
Issue Tracking
https://github.com/open-telemetry/opentelemetry-dotnet/pull/3309
Patch
Issue Tracking
https://github.com/open-telemetry/opentelemetry-dotnet/pull/533
Patch
Issue Tracking
https://github.com/open-telemetry/opentelemetry-dotnet/pull/7061
Patch
Issue Tracking