5.9

CVE-2026-40182

OpenTelemetry dotnet: OTLP exporter reads unbounded HTTP response bodies

OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry to a back-end/collector over gRPC or HTTP using OpenTelemetry Protocol format (OTLP), if the request results in a unsuccessful request (i.e. HTTP 4xx or 5xx), the response is read into memory with no upper-bound on the number of bytes consumed. This could cause memory exhaustion in the consuming application if the configured back-end/collector endpoint is attacker-controlled (or a network attacker can MitM the connection) and an extremely large body is returned by the response. This vulnerability is fixed in 1.15.2.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Opentelemetry ≫ Opentelemetry SwPlatform.net Version >= 1.13.1 < 1.15.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.3% 0.219
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.9 2.2 3.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
security-advisories@github.com 5.3 1.6 3.6
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
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/pull/6564
Patch
Issue Tracking
https://github.com/open-telemetry/opentelemetry-dotnet/pull/7017
Patch
Issue Tracking
https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-q834-8qmm-v933
Vendor Advisory
https://github.com/open-telemetry/opentelemetry-proto/pull/781
Issue Tracking