CVE-2026-78147

High

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.

SeverityHigh

CVSS7.3

Exploit probability—

ProductGgml-org Llama.cpp

PublishedAug 23, 2026

First seenAug 23, 2026

Weakness typeCWE-502Deserialization of untrusted data CWE-20Improper input validation

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

Product	Affected versions	Fixed in
ggml-org llama.cpp	bec4772f6	—

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