EEF-CVE-2026-53430
- Source
- https://cna.erlef.org/osv/EEF-CVE-2026-53430.html
- Import Source
- https://cna.erlef.org/osv/EEF-CVE-2026-53430.json
- JSON Data
- https://api.osv.dev/v1/vulns/EEF-CVE-2026-53430
- Aliases
-
- CVE-2026-53430
- GHSA-6ccx-9c9f-327w
- Published
- 2026-06-15T21:55:33.707Z
- Modified
- 2026-06-15T22:26:29.470744054Z
- Severity
-
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- grpc gzip decompression bomb in GRPC.Compressor.Gzip.decompress/1
- Details
-
Summary
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.
- Database specific
{ "cpe_ids": [ "cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*" ], "capec_ids": [ "CAPEC-130" ], "cwe_ids": [ "CWE-409" ] }- References
- Credits
-
-
- Peter Ullrich - FINDER
-
- Paulo Valente - REMEDIATION_DEVELOPER
-
Affected packages
Hex / grpc
Package
- Name
- grpc
- Purl
- pkg:hex/grpc