Deserialization Vulnerability in ggml-org Llama.cpp RPC Server
CVE-2026-78147

6.9MEDIUM

Key Information:

Vendor

Ggml-org

Status
Llama.cpp
Vendor
CVE Published:
23 August 2026

What is CVE-2026-78147?

A deserialization vulnerability exists within the ggml-org Llama.cpp RPC server, particularly in the function deserialize_tensor of the ggml-rpc.cpp file. This issue is triggered through manipulation of the op or op_params arguments, allowing remote attackers to initiate an attack. It is important to note that this vulnerability differs from other related issues, such as the one documented in CVE-2026-34159, as it does not incorporate proper validation, thus exposing the server to potential remote exploitation.

Affected Version(s)

llama.cpp bec4772f6

References

https://vuldb.com/vuln/394534
vdb-entrytechnical-description
https://vuldb.com/vuln/394534/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-78147
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

m00dy (VulDB User)
VulDB CNA Team
.