Security advisory

{
  "id": "887ef46dadf65ee3042781ca83aaf5ccd6c72044d3c81e7eb2d9060647774a47",
  "url": "https://osv.dev/vulnerability/CVE-2026-61768",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-61768",
    "summary": "NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.",
    "evidence": "osv:CVE-2026-61768",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-61768",
      "aliases": [
        "CVE-2026-61768"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nvidia-nemo/megatron-bridge",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5cb3444c43f7499cf3872b2d46870cf8bc2e00ce"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nvidia:nemo_megatron_bridge:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.5.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.5.0",
            "v0.2.0rc6",
            "v0.2.0rc5",
            "v0.2.0rc4",
            "v0.2.0rc3",
            "v0.2.0rc2",
            "v0.2.0rc1",
            "v0.2.0rc0",
            "v0.1.0rc1",
            "v0.1.0rc0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61768.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:20.682423518Z",
      "provider": "osv",
      "references": [
        "https://github.com/NVIDIA/product-security/tree/main/2026/5868",
        "https://www.cve.org/CVERecord?id=CVE-2026-61768",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61768.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-61768"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-502"
        ],
        "cna_assigner": "nvidia",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0.0 to 0.5.0"
                  },
                  {
                    "last_affected": "0.0 to 0.5.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61768.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-61768",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 486967,
  "published_at": "2026-09-01T16:02:50.72+00:00"
}