PYSEC-2026-507

Vulnerability from pysec - Published: 2026-06-29 11:50 - Updated: 2026-07-01 20:23
VLAI?
Details

In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. The vulnerability occurs at the /api/v1/upload_file/ endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.

Impacted products
Name purl
pytorch-lightning pkg:pypi/pytorch-lightning

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pytorch-lightning",
        "purl": "pkg:pypi/pytorch-lightning"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.2",
        "0.10.0",
        "0.2",
        "0.2.2",
        "0.2.3",
        "0.2.4",
        "0.2.4.1",
        "0.2.5",
        "0.2.5.1",
        "0.2.5.2",
        "0.2.6",
        "0.3",
        "0.3.1",
        "0.3.2",
        "0.3.3",
        "0.3.4",
        "0.3.4.1",
        "0.3.5",
        "0.3.6",
        "0.3.6.1",
        "0.3.6.3",
        "0.3.6.4",
        "0.3.6.5",
        "0.3.6.6",
        "0.3.6.7",
        "0.3.6.8",
        "0.3.6.9",
        "0.4.0",
        "0.4.1",
        "0.4.2",
        "0.4.3",
        "0.4.4",
        "0.4.5",
        "0.4.6",
        "0.4.7",
        "0.4.8",
        "0.4.9",
        "0.5.0",
        "0.5.1",
        "0.5.1.2",
        "0.5.1.3",
        "0.5.2",
        "0.5.2.1",
        "0.5.3",
        "0.5.3.1",
        "0.5.3.2",
        "0.5.3.3",
        "0.6.0",
        "0.7.1",
        "0.7.3",
        "0.7.5",
        "0.7.6",
        "0.8.1",
        "0.8.3",
        "0.8.4",
        "0.8.5",
        "0.9.0",
        "1.0.0",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "1.0.4",
        "1.0.5",
        "1.0.6",
        "1.0.7",
        "1.0.8",
        "1.1.0",
        "1.1.1",
        "1.1.2",
        "1.1.3",
        "1.1.4",
        "1.1.5",
        "1.1.6",
        "1.1.7",
        "1.1.8",
        "1.2.0",
        "1.2.0rc0",
        "1.2.0rc1",
        "1.2.0rc2",
        "1.2.1",
        "1.2.10",
        "1.2.2",
        "1.2.3",
        "1.2.4",
        "1.2.5",
        "1.2.6",
        "1.2.7",
        "1.2.8",
        "1.2.9",
        "1.3.0",
        "1.3.0rc1",
        "1.3.0rc2",
        "1.3.0rc3",
        "1.3.1",
        "1.3.2",
        "1.3.3",
        "1.3.4",
        "1.3.5",
        "1.3.6",
        "1.3.7",
        "1.3.7.post0",
        "1.3.8",
        "1.4.0",
        "1.4.0rc0",
        "1.4.0rc1",
        "1.4.0rc2",
        "1.4.1",
        "1.4.2",
        "1.4.3",
        "1.4.4",
        "1.4.5",
        "1.4.6",
        "1.4.7",
        "1.4.8",
        "1.4.9",
        "1.5.0",
        "1.5.0rc0",
        "1.5.0rc1",
        "1.5.1",
        "1.5.10",
        "1.5.10.post0",
        "1.5.2",
        "1.5.3",
        "1.5.4",
        "1.5.5",
        "1.5.6",
        "1.5.7",
        "1.5.8",
        "1.5.9",
        "1.6.0",
        "1.6.0rc0",
        "1.6.0rc1",
        "1.6.1",
        "1.6.2",
        "1.6.3",
        "1.6.4",
        "1.6.5",
        "1.6.5.post0",
        "1.7.0",
        "1.7.0rc0",
        "1.7.0rc1",
        "1.7.1",
        "1.7.2",
        "1.7.3",
        "1.7.4",
        "1.7.5",
        "1.7.6",
        "1.7.7",
        "1.8.0",
        "1.8.0.post1",
        "1.8.0rc0",
        "1.8.0rc1",
        "1.8.0rc2",
        "1.8.1",
        "1.8.2",
        "1.8.3",
        "1.8.3.post0",
        "1.8.3.post1",
        "1.8.3.post2",
        "1.8.4",
        "1.8.4.post0",
        "1.8.5",
        "1.8.5.post0",
        "1.8.6",
        "1.9.0",
        "1.9.0rc0",
        "1.9.1",
        "1.9.2",
        "1.9.3",
        "1.9.4",
        "1.9.5",
        "2.0.0",
        "2.0.0rc0",
        "2.0.1",
        "2.0.1.post0",
        "2.0.2",
        "2.0.3",
        "2.0.4",
        "2.0.5",
        "2.0.6",
        "2.0.7",
        "2.0.8",
        "2.0.9",
        "2.0.9.post0",
        "2.1.0",
        "2.1.0rc0",
        "2.1.0rc1",
        "2.1.1",
        "2.1.2",
        "2.1.3",
        "2.1.4",
        "2.2.0",
        "2.2.0.post0",
        "2.2.0rc0",
        "2.2.1",
        "2.2.2",
        "2.2.3",
        "2.2.4",
        "2.2.5",
        "2.3.0",
        "2.3.1",
        "2.3.2",
        "2.3.3"
      ]
    }
  ],
  "aliases": [
    "CVE-2024-8019",
    "GHSA-4cv3-v7pv-rfhf"
  ],
  "details": "In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the `LightningApp` when running on a Windows host. The vulnerability occurs at the `/api/v1/upload_file/` endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.",
  "id": "PYSEC-2026-507",
  "modified": "2026-07-01T20:23:03.338811Z",
  "published": "2026-06-29T11:50:34.262484Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8019"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lightning-ai/pytorch-lightning/commit/330af381de88cff17515418a341cbc1f9f127f9a"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pytorch/pytorch"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/2754298b-5af5-48ef-8b38-999093ddf2bd"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/pytorch-lightning"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-4cv3-v7pv-rfhf"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "PyTorch Lightning path traversal vulnerability"
}


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