{
  "affected": [
    {
      "database_specific": {
        "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-63cw-57p8-fm3p/GHSA-63cw-57p8-fm3p.json"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "torch",
        "purl": "pkg:pypi/torch"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.10.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0",
        "1.0.1",
        "1.1.0",
        "1.10.0",
        "1.10.1",
        "1.10.2",
        "1.11.0",
        "1.12.0",
        "1.12.1",
        "1.13.0",
        "1.13.1",
        "1.2.0",
        "1.3.0",
        "1.3.1",
        "1.4.0",
        "1.5.0",
        "1.5.1",
        "1.6.0",
        "1.7.0",
        "1.7.1",
        "1.8.0",
        "1.8.1",
        "1.9.0",
        "1.9.1",
        "2.0.0",
        "2.0.1",
        "2.1.0",
        "2.1.1",
        "2.1.2",
        "2.2.0",
        "2.2.1",
        "2.2.2",
        "2.3.0",
        "2.3.1",
        "2.4.0",
        "2.4.1",
        "2.5.0",
        "2.5.1",
        "2.6.0",
        "2.7.0",
        "2.7.1",
        "2.8.0",
        "2.9.0",
        "2.9.1"
      ]
    }
  ],
  "aliases": [
    "BIT-pytorch-2026-24747",
    "CVE-2026-24747",
    "PYSEC-2026-1856",
    "PYSEC-2026-2286"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502",
      "CWE-94"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-27T20:10:54Z",
    "nvd_published_at": "2026-01-27T22:15:56Z",
    "severity": "HIGH"
  },
  "details": "### Summary\n\nA vulnerability in PyTorch's `weights_only` unpickler allows an attacker to craft a malicious checkpoint file (`.pth`) that, when loaded with `torch.load(..., weights_only=True)`, can corrupt memory and potentially lead to arbitrary code execution.\n\n### Vulnerability Details\n\nThe `weights_only=True` unpickler failed to properly validate pickle opcodes and storage metadata, allowing:\n\n1. **Heap memory corruption** via `SETITEM`/`SETITEMS` opcodes applied to non-dictionary types\n2. **Storage size mismatch** between declared element count and actual data in the archive\n\n### Impact\n\nAn attacker who can convince a user to load a malicious checkpoint file may achieve arbitrary code execution in the context of the victim's process.\n\n\n# Credit\nJi'an Zhou",
  "id": "GHSA-63cw-57p8-fm3p",
  "modified": "2026-11-04T03:15:10.870748916Z",
  "published": "2026-01-27T20:10:54Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pytorch/pytorch/security/advisories/GHSA-63cw-57p8-fm3p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24747"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pytorch/pytorch/issues/163105"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:24977"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-24747"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2433612"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-63cw-57p8-fm3p"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pytorch/PYSEC-2026-1856.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/torch/PYSEC-2026-2286.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pytorch/pytorch"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pytorch/pytorch/163122/commit/954dc5183ee9205cbe79876ad05dd2d9ae752139"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pytorch/pytorch/releases/tag/v2.10.0"
    },
    {
      "type": "WEB",
      "url": "https://pypi.org/project/pytorch"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24747.json"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "PyTorch Vulnerable to Remote Code Execution via Untrusted Checkpoint Files"
}