CVE-2026-48854— elixir-grpc gRPC Elixir 资源管理错误漏洞

Unbounded request body accumulation causes memory exhaustion in elixir-grpc/grpc

Allocation of Resources Without Limits or Throttling vulnerability in elixir-grpc grpc allows unauthenticated attackers to exhaust the BEAM's memory and crash the server by streaming a large or slow-trickle unary request body. 'Elixir.GRPC.Server.Adapters.Cowboy.Handler':read_full_body/3 (lib/grpc/server/adapters/cowboy/handler.ex) accumulates every received chunk into a single growing binary with no size cap. Additionally, when the client omits the grpc-timeout header, the per-chunk read timeout resolves to :infinity, allowing a slow-trickle client to keep the connection alive indefinitely while memory grows. A single connection is sufficient to exhaust server memory and crash the node. This issue affects grpc from 0.3.1 before 1.0.0.

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不加限制或调节的资源分配

elixir-grpc gRPC Elixir 资源管理错误漏洞

elixir-grpc gRPC Elixir是elixir-grpc组织的一款基于Elixir语言构建的gRPC框架。 elixir-grpc gRPC Elixir 0.3.1版本至1.0.0之前版本存在资源管理错误漏洞，该漏洞源于在'Elixir.GRPC.Server.Adapters.Cowboy.Handler':read_full_body/3函数中，接收的每个数据块都会累积到一个不断增长的二进制文件中，且无大小限制；此外，当客户端省略grpc-timeout标头时，每个数据块的读取超时时间

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