UBUNTU-CVE-2026-78147

Source
https://ubuntu.com/security/CVE-2026-78147
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78147.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-78147
Upstream
  • CVE-2026-78147
Published
2026-08-23T23:16:00Z
Modified
2026-09-02T19:36:47Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
  • 6.9 (Medium) CVSS_V4 - 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 CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:26.04:LTS / llama.cpp

Package

Name
llama.cpp
Purl
pkg:deb/ubuntu/llama.cpp?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

Other
5882+dfsg-2
8064+dfsg-1ubuntu1
8681+dfsg-1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libllama0",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "llama.cpp",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "llama.cpp-examples",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "llama.cpp-tests",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "llama.cpp-tools",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "llama.cpp-tools-extra",
            "binary_version":  "8681+dfsg-1"
        },
        {
            "binary_name":  "python3-gguf",
            "binary_version":  "8681+dfsg-1"
        }
    ]
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78147.json"