CVE-2023-44487

Denial of service from HTTP/2 Rapid Reset in google.golang.org/grpc

Description

An attacker can send HTTP/2 requests, cancel them, and send subsequent requests. This 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, grpc.MaxConcurrentStreams. This results in a denial of service due to resource consumption.

Patch Available

Fix available through Seal Security.  
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Fix without upgrading

Score

Severity

Ecosystem

RPM

Publish Date

November 1, 2023

Modified Date

December 3, 2025

Score Vector

Affected Versions