Vulnerability-Lookup

GHSA-3JHP-QV93-3428

Vulnerability from github – Published: 2026-10-27 03:32 – Updated: 2026-10-27 03:32

Details

llama.cpp b10398 before b11301 contains an integer overflow vulnerability in gguf_init_from_reader that allows attackers to bypass tensor element-count validation by supplying shapes whose product wraps to zero. Attackers can craft GGUF files with enormous tensor extents that overflow ggml_nbytes() and strides, causing out-of-bounds memory access when buffers are sized from wrapped byte counts.

Severity

6.6 (Medium)


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

6.9 (Medium)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-116829"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-27T01:19:06Z",
    "severity": "MODERATE"
  },
  "details": "llama.cpp b10398 before b11301 contains an integer overflow vulnerability in gguf_init_from_reader that allows attackers to bypass tensor element-count validation by supplying shapes whose product wraps to zero. Attackers can craft GGUF files with enormous tensor extents that overflow ggml_nbytes() and strides, causing out-of-bounds memory access when buffers are sized from wrapped byte counts.",
  "id": "GHSA-3jhp-qv93-3428",
  "modified": "2026-10-27T03:32:10Z",
  "published": "2026-10-27T03:32:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116829"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ggml-org/llama.cpp/issues/29383"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ggml-org/llama.cpp/pull/29384"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ggml-org/llama.cpp/commit/2149c00f4442dc59302e134a02e4c99d5f7ed9fc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ggml-org/llama.cpp/blob/v0.5.0/ggml/src/gguf.cpp#L701"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ggml-org/llama.cpp/releases/tag/b11301"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/llama-cpp-b10398-before-b11301-integer-overflow-in-gguf-init-from-reader"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-116829 (GCVE-0-2026-116829)

Vulnerability from cvelistv5 – Published: 2026-10-27 00:33 – Updated: 2026-10-27 00:33

Title

llama.cpp b10398 before b11301 Integer Overflow in gguf_init_from_reader

Summary

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

6.6 (Medium)


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

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 6843 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/ggml-org/llama.cpp/issues/29383	issue-tracking
https://github.com/ggml-org/llama.cpp/pull/29384	patchissue-tracking
https://github.com/ggml-org/llama.cpp/commit/2149…	patch
https://github.com/ggml-org/llama.cpp/blob/v0.5.0…	technical-description
https://github.com/ggml-org/llama.cpp/releases/ta…	release-notes
https://www.vulncheck.com/advisories/llama-cpp-b1…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: b10398 , < b11301 (custom) Affected: 0.1.0 , < 0.6.0 (semver) cpe:2.3:a:ggml:llama.cpp::::::::

Date Public

2026-09-24 00:00

Credits

Daniel Kuts (apach301) Jeongwoo Lee apach301

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:github/ggml-org/llama.cpp",
          "product": "llama.cpp",
          "vendor": "ggml-org",
          "versions": [
            {
              "lessThan": "b11301",
              "status": "affected",
              "version": "b10398",
              "versionType": "custom"
            },
            {
              "lessThan": "0.6.0",
              "status": "affected",
              "version": "0.1.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:ggml:llama.cpp:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "b11301",
                  "versionStartIncluding": "b10398",
                  "vulnerable": true
                }
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              "negate": false,
              "operator": "OR"
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      "datePublic": "2026-09-24T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "llama.cpp b10398 before b11301 contains an integer overflow vulnerability in gguf_init_from_reader that allows attackers to bypass tensor element-count validation by supplying shapes whose product wraps to zero. Attackers can craft GGUF files with enormous tensor extents that overflow ggml_nbytes() and strides, causing out-of-bounds memory access when buffers are sized from wrapped byte counts."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW"
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        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
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      "problemTypes": [
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        },
        {
          "name": "llama.cpp b11301 Release Notes",
          "tags": [
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          "url": "https://github.com/ggml-org/llama.cpp/releases/tag/b11301"
        },
        {
          "name": "VulnCheck Advisory: llama.cpp b10398 before b11301 Integer Overflow in gguf_init_from_reader",
          "tags": [
            "third-party-advisory"
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          "url": "https://www.vulncheck.com/advisories/llama-cpp-b10398-before-b11301-integer-overflow-in-gguf-init-from-reader"
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      ],
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  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-116829",
    "datePublished": "2026-10-27T00:33:59.223Z",
    "dateReserved": "2026-10-26T22:14:57.233Z",
    "dateUpdated": "2026-10-27T00:33:59.223Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
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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