'Elixir.GRPC.Codec.Erlpack':decode/2 (lib/grpc/codec/erlpack.ex) calls :erlang.binary_to_term/1 on the raw gRPC message body without the :safe option, no size bound, and no type guard. Any unauthenticated peer that sends a request with Content-Type: application/grpc+erlpack can send a crafted payload that mints arbitrary new atoms (which are never garbage-collected, exhausting the bounded atom table and crashing the VM) or that encodes a fun term which, if applied anywhere downstream, executes attacker-controlled code inside the server process.
This issue affects grpc from 0.4.0 before 1.0.0.
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Tue, 16 Jun 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 15 Jun 2026 22:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Deserialization of Untrusted Data and Allocation of Resources Without Limits or Throttling vulnerabilities in elixir-grpc grpc allow unauthenticated attackers to crash the BEAM node via atom table exhaustion and, when a decoded term flows into a call site that invokes it, achieve remote code execution on the server. 'Elixir.GRPC.Codec.Erlpack':decode/2 (lib/grpc/codec/erlpack.ex) calls :erlang.binary_to_term/1 on the raw gRPC message body without the :safe option, no size bound, and no type guard. Any unauthenticated peer that sends a request with Content-Type: application/grpc+erlpack can send a crafted payload that mints arbitrary new atoms (which are never garbage-collected, exhausting the bounded atom table and crashing the VM) or that encodes a fun term which, if applied anywhere downstream, executes attacker-controlled code inside the server process. This issue affects grpc from 0.4.0 before 1.0.0. | |
| Title | Remote code execution and denial of service via unsafe Erlang term deserialization in elixir-grpc/grpc | |
| First Time appeared |
Elixir-grpc
Elixir-grpc grpc |
|
| Weaknesses | CWE-502 CWE-770 |
|
| CPEs | cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Elixir-grpc
Elixir-grpc grpc |
|
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: EEF
Published:
Updated: 2026-06-16T14:45:02.196Z
Reserved: 2026-05-25T20:44:10.696Z
Link: CVE-2026-48853
Updated: 2026-06-16T14:44:54.804Z
Status : Deferred
Published: 2026-06-15T23:16:45.663
Modified: 2026-06-16T15:35:16.600
Link: CVE-2026-48853
No data.
OpenCVE Enrichment
Updated: 2026-06-16T21:30:16Z