CVE-2026-40891
⚪ Do wiadomości
Nadmierna alokacja pamięci w OpenTelemetry dotnet może prowadzić do odmowy usługi.
CVSS
5.3
EPSS
0.0%
Exploit
none
Vendor
opentelemetry
Opis źródłowy (NVD)
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.
dos
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 5.3 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.0% |
| Opublikowano (NVD) | 2026-04-23 18:16:28 UTC |
| Ostatnia modyfikacja (NVD) | 2026-04-29 14:15:05 UTC |
Referencje
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/5980 (security-advisories@github.com) [Issue Tracking, Patch]
- https://github.com/open-telemetry/opentelemetry-dotnet/pull/7064 (security-advisories@github.com) [Issue Tracking, Patch]
- https://github.com/open-telemetry/opentelemetry-dotnet/security/advisories/GHSA-mr8r-92fq-pj8p (security-advisories@github.com) [Vendor Advisory, Mitigation]