turboderp-org ExLlamaV2 GPTQ Index q_matrix.cu make_sequential out-of-bounds write

{
  "id": "e37f3deab6aba7c61fc732777cc7a4baa80fde252fb1a09e0f8a913ba8a43bd2",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-116502",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "turboderp-org ExLlamaV2 GPTQ Index q_matrix.cu make_sequential out-of-bounds write",
    "summary": "A flaw has been found in turboderp-org ExLlamaV2 up to 0.3.2. The impacted element is the function QMatrix::make_sequential of the file exllamav2/exllamav2_ext/cuda/q_matrix.cu of the component GPTQ Index Handler. Executing a manipulation of the argument g_idx can lead to out-of-bounds write. The attack needs to be launched locally. The project was informed of the problem early through an issue report but has not responded yet.",
    "evidence": "cve:CVE-2026-116502",
    "products": [
      {
        "name": {
          "value": "ExLlamaV2",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-116502",
      "aliases": [
        "CVE-2026-116502"
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X"
          }
        },
        {
          "cvssV3_1": {
            "version": "3.1",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:X/RC:C"
          }
        },
        {
          "cvssV3_0": {
            "version": "3.0",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:X/RC:C"
          }
        },
        {
          "cvssV2_0": {
            "version": "2.0",
            "baseScore": 3.2,
            "vectorString": "AV:L/AC:L/Au:S/C:N/I:P/A:P/E:ND/RL:ND/RC:C"
          }
        }
      ],
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:turboderp-org:exllamav2:*:*:*:*:*:*:*:*"
          ],
          "vendor": "turboderp-org",
          "modules": [
            "GPTQ Index Handler"
          ],
          "product": "ExLlamaV2",
          "versions": [
            {
              "status": "affected",
              "version": "0.3.0"
            },
            {
              "status": "affected",
              "version": "0.3.1"
            },
            {
              "status": "affected",
              "version": "0.3.2"
            }
          ]
        }
      ],
      "modified": "2026-10-26T20:15:07.238Z",
      "provider": "cve",
      "references": [
        "https://vuldb.com/vuln/426401",
        "https://vuldb.com/vuln/426401/cti",
        "https://vuldb.com/cve/CVE-2026-116502",
        "https://vuldb.com/submit/1022425",
        "https://github.com/turboderp-org/exllamav2/issues/817",
        "https://github.com/turboderp-org/exllamav2/"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
          "shortName": "VulDB",
          "dateUpdated": "2026-10-26T20:15:07.238Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-116502",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 341923,
  "published_at": "2026-10-26T20:15:07.238+00:00"
}