CVE-2026-78147CWE-20CWE-502insecure-deserialization

CVE-2026-78147

High · published August 24, 2026

CVSS v3.1
7.3
EPSS
1%
Percentile
46.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
6.9 · 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
EPSS
0.00564 · 46.1th percentile
Weaknesses
CWE-20 · Improper Input Validation; CWE-502 · Deserialization of Untrusted Data
Published
2026-08-24T03:16Z
References (6)
EPSS history
Timeline
  • 23 AUG 23:00Z
    ggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp deserialize_tensor deserialization
    cvelistv5