CVE-2026-53430— elixir-grpc grpc 资源管理错误漏洞

grpc gzip decompression bomb in GRPC.Compressor.Gzip.decompress/1

Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-grpc grpc (GRPC.Compressor.Gzip, GRPC.Message modules) allows a denial of service via a gzip decompression bomb. This vulnerability is associated with program files lib/grpc/compressor/gzip.ex, lib/grpc/message.ex and program routines 'Elixir.GRPC.Compressor.Gzip':decompress/1, 'Elixir.GRPC.Message':from_data/2. 'Elixir.GRPC.Compressor.Gzip':decompress/1 calls :zlib.gunzip/1 directly on attacker-controlled bytes with no decompressed-size limit, ratio check, or incremental decoding. Because this module is the registered gzip GRPC.Compressor implementation, it is invoked automatically whenever an incoming gRPC frame carries the grpc-encoding: gzip header. :zlib.gunzip/1 allocates the entire decompressed result as a single binary, so a small highly compressible payload (for example a few kilobytes of zeros, which gzip compresses at roughly 1000:1) expands to multiple gigabytes inside a single call. The max_receive_message_length limit is enforced only against the already-decompressed message, so it provides no protection. An unauthenticated remote peer can send a single crafted frame to exhaust the BEAM node's heap and trigger an out-of-memory kill. This issue affects grpc: from 0.4.0 before 1.0.0.

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对高度压缩数据的处理不恰当(数据放大攻击)

elixir-grpc grpc 资源管理错误漏洞

elixir-grpc grpc是elixir-grpc的一个实现gRPC协议的开源框架。 elixir-grpc grpc 0.4.0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Gzip压缩处理不当，可能导致未经身份验证的远程攻击者通过发送特制的单帧数据，耗尽BEAM节点堆内存并触发内存耗尽。

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