Resource Exhaustion Vulnerability in Elixir-grpc gRPC Server
CVE-2026-124279

8.2HIGH

Key Information:

Vendor
CVE Published:
13 November 2026

What is CVE-2026-124279?

The Elixir-grpc gRPC Server contains a vulnerability that enables unauthenticated attackers to potentially exhaust server memory. This occurs through client-streaming or bidirectional-streaming requests that buffer data without appropriate limits. Specifically, the server can accept streaming requests that exceed the configured limits, allowing numerous concurrent streams to consume excessive memory resources. This issue affects all versions prior to 1.0.6, leading to a risk of server instability.

Affected Version(s)

grpc_server 1.0.0 < 1.1.0

grpc_server 49e18c3ec6bb9afe2f712caad3dbab5c56a68a00

References

CVSS V4

Score:
8.2
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alfie Goh Li Heng
Alfie Goh Li Heng
Paulo Valente
Peter Ullrich
Jonatan Männchen / EEF
.