CVE-2026-40182
Last modified
CVE-2026-40182 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Opentelemetry | Opentelemetry | >= 1.13.1, < 1.15.2 |
References
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/6564Issue Tracking, Patch
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/7017Issue Tracking, Patch
Timeline
- Published
- Last Modified
- Status
- Analyzed
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