Security advisory

{
  "id": "a9f49a0efdc7a648d381b34e24819df64017f7985ca2aaac69475f08cf8e7b71",
  "url": "https://osv.dev/vulnerability/CVE-2026-48934",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-48934",
    "summary": "A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.",
    "evidence": "osv:CVE-2026-48934",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-48934",
      "aliases": [
        "BIT-node-2026-48934",
        "BIT-node-min-2026-48934",
        "CVE-2026-48934"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nodejs/node",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fdfa0ff0dbaf0fbf4d7d6d89a2ab807f3177fa5c"
                },
                {
                  "last_affected": "b7e6a5d37e7a14ef0f2cc95214b95d66c4081415"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nodejs:node.js:22.22.3:*:*:*:-:*:*:*",
                    "range": [
                      {
                        "introduced": "22.22.3"
                      },
                      {
                        "last_affected": "22.22.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:nodejs:node.js:24.16.0:*:*:*:-:*:*:*",
                    "range": [
                      {
                        "introduced": "24.16.0"
                      },
                      {
                        "last_affected": "24.16.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:nodejs:node.js:26.3.0:*:*:*:-:*:*:*",
                    "range": [
                      {
                        "introduced": "26.3.0"
                      },
                      {
                        "last_affected": "26.3.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "22.22.3",
            "24.16.0",
            "26.3.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48934.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.854277499Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48934.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-48934",
        "https://nodejs.org/en/blog/vulnerability/june-2026-security-releases"
      ],
      "provider_metadata": {
        "cna_assigner": "hackerone",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "22.22.3"
                  },
                  {
                    "last_affected": "22.22.3"
                  },
                  {
                    "introduced": "24.16.0"
                  },
                  {
                    "last_affected": "24.16.0"
                  },
                  {
                    "introduced": "26.3.0"
                  },
                  {
                    "last_affected": "26.3.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48934.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-48934",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492553,
  "published_at": "2026-06-26T01:14:36.894+00:00"
}