GHSA-m425-mq94-257g: gRPC-Go HTTP/2 Rapid Reset vulnerability

October 25, 2023 (updated July 19, 2024)

In affected releases of gRPC-Go, it is possible for an attacker to send HTTP/2 requests, cancel them, and send subsequent requests, which is valid by the HTTP/2 protocol, but would cause the gRPC-Go server to launch more concurrent method handlers than the configured maximum stream limit.

References

github.com/advisories/GHSA-m425-mq94-257g
github.com/grpc/grpc-go
github.com/grpc/grpc-go/commit/f2180b4d5403d2210b30b93098eb7da31c05c721
github.com/grpc/grpc-go/pull/6703
github.com/grpc/grpc-go/security/advisories/GHSA-m425-mq94-257g
nvd.nist.gov/vuln/detail/CVE-2023-44487

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