Vulnerability-Lookup

UBUNTU-CVE-2026-78147 (CVE-2026-78147)

Vulnerability from osv_ubuntu – Published: 2026-08-23 23:16 – Updated: 2026-10-17 09:52 – Source website

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.

Severity

7.3 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-78147	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-78147	REPORT
	https://github.com/ggml-org/llama.cpp/issues/25289	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libllama0",
            "binary_version": "10438+dfsg-1ubuntu1"
          },
          {
            "binary_name": "llama.cpp",
            "binary_version": "10438+dfsg-1ubuntu1"
          },
          {
            "binary_name": "llama.cpp-examples",
            "binary_version": "10438+dfsg-1ubuntu1"
          },
          {
            "binary_name": "llama.cpp-services",
            "binary_version": "10438+dfsg-1ubuntu1"
          },
          {
            "binary_name": "llama.cpp-tests",
            "binary_version": "10438+dfsg-1ubuntu1"
          },
          {
            "binary_name": "llama.cpp-tools",
            "binary_version": "10438+dfsg-1ubuntu1"
          },
          {
            "binary_name": "llama.cpp-tools-extra",
            "binary_version": "10438+dfsg-1ubuntu1"
          },
          {
            "binary_name": "python3-gguf",
            "binary_version": "10438+dfsg-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "llama.cpp",
        "purl": "pkg:deb/ubuntu/llama.cpp@10438+dfsg-1ubuntu1?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8681+dfsg-1",
        "9721+dfsg-1ubuntu1",
        "10438+dfsg-1",
        "10438+dfsg-1ubuntu1"
      ]
    },
    {
      "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"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "llama.cpp",
        "purl": "pkg:deb/ubuntu/llama.cpp@8681+dfsg-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5882+dfsg-2",
        "8064+dfsg-1ubuntu1",
        "8681+dfsg-1"
      ]
    }
  ],
  "aliases": [],
  "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.",
  "id": "UBUNTU-CVE-2026-78147",
  "modified": "2026-10-17T09:52:44Z",
  "published": "2026-08-23T23:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-78147"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-78147"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ggml-org/llama.cpp/issues/25289"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "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",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-78147"
  ]
}

CVE-2026-78147 (GCVE-0-2026-78147)

Vulnerability from cvelistv5 – Published: 2026-08-23 23:00 – Updated: 2026-08-27 14:37

Title

ggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp deserialize_tensor deserialization

Summary

Severity

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

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

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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-27 13:21 UTC

CWE

CWE-502 - Deserialization
CWE-20 - Improper Input Validation

Assigner

VulDB CNA under the mitre root

CNA scorecard B 82/100 over 3826 records in the last 180 days details

References

6 references

URL	Tags
https://vuldb.com/vuln/394534	vdb-entrytechnical-description
https://vuldb.com/vuln/394534/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-78147	third-party-advisory
https://vuldb.com/submit/882534	third-party-advisory
https://github.com/ggml-org/llama.cpp/issues/25289	issue-tracking
https://github.com/ggml-org/llama.cpp/	product

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: bec4772f6 cpe:2.3:a:ggml-org:llama.cpp::::::::

Credits

m00dy (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-78147",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-27T13:21:09.213121Z",
                "version": "2.0.3"
              },
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            }
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        "providerMetadata": {
          "dateUpdated": "2026-08-27T14:37:49.255Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:ggml-org:llama.cpp:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "ggml-RPC Server"
          ],
          "product": "llama.cpp",
          "vendor": "ggml-org",
          "versions": [
            {
              "status": "affected",
              "version": "bec4772f6"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "m00dy (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
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        },
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            "version": "3.0"
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        {
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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UBUNTU-CVE-2026-78147 (CVE-2026-78147)

CVE-2026-78147 (GCVE-0-2026-78147)

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