CVE-2026-40182
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
OpenTelemetry.Exporter.OpenTelemetryProtocolNuGet | >= 1.13.1, < 1.15.2 | 1.15.2 |
Affected products
3- cpe:2.3:a:opentelemetry:opentelemetry:*:*:*:*:*:.net:*:*Range: >=1.13.1,<1.15.2
- osv-coords2 versions
< 4.1051.100-r0+ 1 more
- (no CPE)range: < 4.1051.100-r0
- (no CPE)range: >= 1.13.1, < 1.15.2
Patches
Vulnerability mechanics
References
6- github.com/open-telemetry/opentelemetry-dotnet/pull/6564nvdIssue TrackingPatchWEB
- github.com/open-telemetry/opentelemetry-dotnet/pull/7017nvdIssue TrackingPatchWEB
- github.com/advisories/GHSA-q834-8qmm-v933ghsaADVISORY
- github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-q834-8qmm-v933nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-40182ghsaADVISORY
- github.com/open-telemetry/opentelemetry-proto/pull/781nvdIssue TrackingWEB
News mentions
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