Fiche vulnérabilité
CVE-2026-40891 : faille moyenne opentelemetry opentelemetry (CVSS 5.3)
Description
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.
En bref
- Sévérité
- Moyenne (CVSS 5.3)
- Vecteur CVSS
- CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 23 avr. 2026
- Dernière mise à jour
- 17 juin 2026
Produits concernés
- opentelemetry opentelemetry