PyTorch torch.nn.utils.rnn.pad_packed_sequence memory corruption

{
  "id": "66ed4b15e1bd8a83d52588e8b51500bffcee4c788f7b28db8a89ce413facefca",
  "url": "https://osv.dev/vulnerability/CVE-2025-2998",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "PyTorch torch.nn.utils.rnn.pad_packed_sequence memory corruption",
    "summary": "A vulnerability was found in PyTorch 2.6.0. It has been declared as critical. Affected by this vulnerability is the function torch.nn.utils.rnn.pad_packed_sequence. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.",
    "evidence": "osv:CVE-2025-2998",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-2998",
      "aliases": [
        "BIT-pytorch-2025-2998",
        "CVE-2025-2998",
        "GHSA-f4hp-rmr7-r7v8",
        "PYSEC-2025-192"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pytorch/pytorch",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1eba9b3aa3c43f86f4a2c807ac8e12c4a7767340"
                },
                {
                  "last_affected": "1eba9b3aa3c43f86f4a2c807ac8e12c4a7767340"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.6.0"
                      },
                      {
                        "last_affected": "2.6.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "cpe": "cpe:2.3:a:linuxfoundation:pytorch:2.6.0:-:*:*:*:python:*:*",
                    "range": [
                      {
                        "introduced": "2.6.0-NA"
                      },
                      {
                        "last_affected": "2.6.0-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.6.0",
            "2.6.0-NA",
            "v2.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-2998.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.391958890Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/2xxx/CVE-2025-2998.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-2998",
        "https://vuldb.com/?id.302047",
        "https://vuldb.com/?submit.524151",
        "https://github.com/pytorch/pytorch/issues/149622",
        "https://github.com/pytorch/pytorch/issues/149622#issue-2935495265",
        "https://vuldb.com/?ctiid.302047"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-119"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/2xxx/CVE-2025-2998.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-2998",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499476,
  "published_at": "2025-03-31T14:00:12.169+00:00"
}