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CVE-2026-40891

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2026
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

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

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 encode an extremely large length-delimited protobuf field which was used directly for allocation, allowing excessive memory allocation and potential denial of service (DoS). This vulnerability is fixed in 1.15.2.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

opentelemetry-dotnet

Vendor
open-telemetry
Product
opentelemetry-dotnet
Platforms
Unknown
Default status
Unknown
opentelemetry-dotnet · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
>= 1.13.1, < 1.15.3affectedUnavailableUnavailableUnavailableNone listed

OpenTelemetry.Exporter.OpenTelemetryProtocol

Vendor
open-telemetry
Product
OpenTelemetry.Exporter.OpenTelemetryProtocol
Platforms
Unknown
Default status
Unknown
OpenTelemetry.Exporter.OpenTelemetryProtocol · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
>= 1.13.1, < 1.15.3affectedUnavailableUnavailableUnavailableNone listed