Description
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 0.3.0-alpha.2 before 1.0.0.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
elixir-grpc grpc
Default version status: unaffected
0.3.0-alpha.2 to < 1.0.0affected
pkg:hex/grpcelixir-grpc grpc
Default version status: unaffected
d1abe70a6cad6dac4a3f8235d883d7c896989560 to < 49e18c3ec6bb9afe2f712caad3dbab5c56a68a00affected
pkg:github/elixir-grpc/grpcReferences
- https://github.com/elixir-grpc/grpc/security/advisories/GHSA-q8gf-9rvj-gmgj ↗
- https://cna.erlef.org/cves/CVE-2026-48854.html ↗
- https://osv.dev/vulnerability/EEF-CVE-2026-48854 ↗
- https://github.com/elixir-grpc/grpc/commit/d1abe70a6cad6dac4a3f8235d883d7c896989560 ↗
- https://github.com/elixir-grpc/grpc/commit/49e18c3ec6bb9afe2f712caad3dbab5c56a68a00 ↗