CVE-2026-78147
ggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp deserialize_tensor deserialization
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 23, 2026
- Updated
- Aug 27, 2026
- Reserved
- Aug 23, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
llama.cppggml-org |
|
References
- VDB-394534 | ggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp deserialize_tensor deserializationvdb-entrytechnical-description
- VDB-394534 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-78147 | CVE Analysis and Reportthird-party-advisory
- Submit #882534 | ggml-org llama.cpp master bec4772f6 Memory Corruptionthird-party-advisory
- https://github.com/ggml-org/llama.cpp/issues/25289issue-tracking
- https://github.com/ggml-org/llama.cpp/product
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