CVE-2026-78147ggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp deserialize_tensor deserialization

Description

A vulnerability was found in ggml-org llama.cpp bec4772f6. The impacted element is the function deserialize_tensor of the file ggml/src/ggml-rpc/ggml-rpc.cpp of the component ggml-RPC Server. Performing a manipulation of the argument op/op_params results in deserialization. The attack may be initiated remotely. This vulnerability is distinct from CVE-2026-34159 (GHSA-j8rj-fmpv-wcxw, PR #20908), which only added a buffer==nullptr rejection in create_node() and does not validate op or op_params. The reported GitHub issue was closed automatically due to inactivity.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• VDB-394534 | ggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp deserialize_tensor deserialization vdb-entrytechnical-description
• VDB-394534 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
• CVE-2026-78147 | CVE Analysis and Report third-party-advisory
• Submit #882534 | ggml-org llama.cpp master bec4772f6 Memory Corruption third-party-advisory
• https://github.com/ggml-org/llama.cpp/issues/25289 issue-tracking
• https://github.com/ggml-org/llama.cpp/ product