CVE-2026-40891

MEDIUM

5.3

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.15.3

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Vector de ataqueADJACENT_NETWORK

ComplejidadHIGH

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado4/23/2026

Ultima modificacion4/24/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-789

Referencias

https://github.com/open-telemetry/opentelemetry-dotnet/pull/5980(security-advisories@github.com)

https://github.com/open-telemetry/opentelemetry-dotnet/pull/7064(security-advisories@github.com)

https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-mr8r-92fq-pj8p(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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