AZL-90080 CVE-2026-44967 affecting package opentelemetry-cpp for versions less than 1.14.2-3

OpenTelemetry-cpp is the C++ implementation of OpenTelemetry. Prior to release 1.27.0, the OTLP HTTP exporters traces/metrics/logs read the full HTTP response into an in-memory vector of bytes without a size cap. This is exploitable for memory exhaustion when the configured collector endpoint is...

CVE-2026-44967

OpenTelemetry-cpp is the C++ implementation of OpenTelemetry. Prior to release 1.27.0, the OTLP HTTP exporters traces/metrics/logs read the full HTTP response into an in-memory vector of bytes without a size cap. This is exploitable for memory exhaustion when the configured collector endpoint is...

CVE-2026-44967: Memory Allocation with Excessive Size Value

OpenTelemetry-cpp is the C++ implementation of OpenTelemetry. Prior to release 1.27.0, the OTLP HTTP exporters traces/metrics/logs read the full HTTP response into an in-memory vector of bytes without a size cap. This is exploitable for memory exhaustion when the configured collector endpoint is...

CVE-2026-40891

OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry over gRPC using the OpenTelemetry Protocol OTLP, the exporter may parse a server-provided grpc-status-details-bin trailer during retry handling. Prior to the fix, a malformed trailer could...

GO-2026-4985 Oversized OTLP HTTP response bodies can cause memory exhaustion in go.opentelemetry.io/otel/exporters/otlp

The OTLP HTTP exporters traces, metrics, and logs do not limit the size of the HTTP response body read from the collector. A malicious or misconfigured collector can send a large response body, leading to excessive memory consumption and potential process termination OOM...

CVE-2026-42191: Creation of Temporary File in Directory with Insecure Permissions

OpenTelemetry.Exporter.OpenTelemetryProtocol is the OTLP OpenTelemetry Protocol exporter implementation. From 1.8.0 to 1.15.2, the OTLP disk retry feature in OpenTelemetry.Exporter.OpenTelemetryProtocol silently fell back to Path.GetTempPath when OTELDOTNETEXPERIMENTALOTLPRETRY=disk was set but...

Memory Allocation with Excessive Size Value

Overview OpenTelemetry.Exporter.OpenTelemetryProtocol is an OTLP Exporter for OpenTelemetry .NET. Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via the OTLP exporter. An attacker can cause memory exhaustion by configuring a malicious back-end or...

OpenTelemetry dotnet: Unbounded `grpc-status-details-bin` parsing in OTLP/gRPC retry handling

Summary When exporting telemetry over gRPC using the OpenTelemetry Protocol OTLP, the exporter may parse a server-provided grpc-status-details-bin trailer during retry handling. Prior to the fix, a malformed trailer could encode an extremely large length-delimited protobuf field which was used...

EUVD-2026-25268

OpenTelemetry dotnet: Unbounded grpc-status-details-bin parsing in OTLP/gRPC retry handling...

EUVD-2026-25266

OpenTelemetry dotnet: OTLP exporter reads unbounded HTTP response bodies...

CVE-2026-40891

OpenTelemetry dotnet (OpenTelemetry .NET telemetry framework) contains a vulnerability in versions 1.13.1 through before 1.15.2. During OTLP/gRPC export, the exporter may parse a server-provided grpc-status-details-bin trailer during retry handling. A malformed trailer could encode a very large l...

CVE-2026-40891

OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry over gRPC using the OpenTelemetry Protocol OTLP, the exporter may parse a server-provided grpc-status-details-bin trailer during retry handling. Prior to the fix, a malformed trailer could...

CVE-2026-40182: Memory Allocation with Excessive Size Value

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...

OpenTelemetry .NET 安全漏洞

OpenTelemetry .NET is the .NET client of OpenTelemetry developed by OpenTelemetry Inc. Versions of OpenTelemetry .NET from 1.13.1 to 1.15.2 contained a security vulnerability. This vulnerability stemmed from the unlimited response reading during the OTLP protocol export process, which could lead ...

CVE-2026-40891: Memory Allocation with Excessive Size Value

OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry over gRPC using the OpenTelemetry Protocol OTLP, the exporter may parse a server-provided grpc-status-details-bin trailer during retry handling. Prior to the fix, a malformed trailer could...

OpenTelemetry .NET has potential memory exhaustion via unbounded pooled-list sizing in Jaeger exporter conversion path

Summary !IMPORTANT There is no plan to fix this issue as OpenTelemetry.Exporter.Jaeger was deprecated in 2023. It is for informational purposes only. OpenTelemetry.Exporter.Jaeger may allow sustained memory pressure when the internal pooled-list sizing grows based on a large observed span/tag set...

Linux Distros Unpatched Vulnerability : CVE-2026-39882

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - OpenTelemetry-Go is the Go implementation of OpenTelemetry. Prior to 1.43.0, the otlp HTTP exporters traces/metrics/logs read the full HTTP response body into a...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value through the UploadTraces, UploadMetrics, and uploadLogs response-handling paths in exporters/otlp/otlptrace/otlptracehttp/client.go, exporters/otlp/otlpmetric/otlpmetrichttp/client.go, and...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value through the UploadTraces, UploadMetrics, and uploadLogs response-handling paths in exporters/otlp/otlptrace/otlptracehttp/client.go, exporters/otlp/otlpmetric/otlpmetrichttp/client.go, and...

AZL-82190 CVE-2026-39882 affecting package docker-buildx for versions less than 0.14.0-11

OpenTelemetry-Go is the Go implementation of OpenTelemetry. Prior to 1.43.0, the otlp HTTP exporters traces/metrics/logs read the full HTTP response body into an in-memory bytes.Buffer without a size cap. This is exploitable for memory exhaustion when the configured collector endpoint is...