CVE-2026-48853
CriticalCVSS 9.2Exploitation Probability (EPSS)
Low risk43th percentile — higher than 43% of all known CVEs
Summary
The elixir-grpc has vulnerabilities related to deserialization of untrusted data and resource allocation without limits, allowing unauthenticated attackers to crash the BEAM node via atom table exhaustion and achieve remote code execution on the server.
Risk Assessment
Attackers can exploit these vulnerabilities to gain control over the server, leading to serious security implications for the organization.
Recommendation
It is recommended to update elixir-grpc to version 1.0.0 or newer and implement authorization mechanisms to minimize the risk of unauthorized access.
Original NVD description (English source)
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.