{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.25.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "56293de4fc0914d7bc35f92e98de25b0d9bb417d"
            },
            {
              "fixed": "264378394ec80e1cca2188ecb496829da2eec6c8"
            }
          ],
          "repo": "https://github.com/uhop/node-re2",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-ff84-5f28-78qj"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67550.json"
  },
  "details": "re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2 validates lastIndex against the UTF-8 byte length of a subject but uses it as a UTF-16 code-unit offset in exec, test, match, replace, and split, allowing an attacker-influenced lastIndex on a non-ASCII subject to trigger an out-of-bounds heap read and an uncatchable process crash, with limited heap information disclosure in some cases. This issue is fixed in 1.25.2.",
  "id": "CVE-2026-67550",
  "modified": "2026-08-01T03:32:44.304110010Z",
  "published": "2026-07-30T19:59:55.916Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/uhop/node-re2/releases/tag/1.25.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67550.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/uhop/node-re2/security/advisories/GHSA-ff84-5f28-78qj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67550"
    },
    {
      "type": "FIX",
      "url": "https://github.com/uhop/node-re2/commit/56293de4fc0914d7bc35f92e98de25b0d9bb417d"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "re2: Out-of-bounds heap read in `exec`/`test`/`match` via attacker-influenced `lastIndex` on a non-ASCII subject → uncatchable process crash (DoS)"
}