{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "3.6.0"
              },
              {
                "fixed": "3.6.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "b901de0774f80ec00f3b07307a2cf5e13526800c"
            },
            {
              "fixed": "46c34bd3199aa1e32374a1af59d02413b9ea197a"
            }
          ],
          "repo": "https://github.com/mafintosh/protocol-buffers-schema",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "certcc",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5758.json"
  },
  "details": "JavaScript is vulnerable to prototype pollution in Mafintosh's protocol-buffers-schema Version 3.6.0, where an attacker may alter the application logic, bypass security checks, cause a DoS or achieve remote code execution.",
  "id": "CVE-2026-5758",
  "modified": "2026-08-07T11:30:59.942893179Z",
  "published": "2026-04-15T17:20:13.551Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://morielharush.github.io/2026/04/12/cve-2026-5758-protocol-buffers-schema-prototype-pollution/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5758.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5758"
    },
    {
      "type": "FIX",
      "url": "https://github.com/mafintosh/protocol-buffers-schema/pull/70"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Mafintosh's protocol-buffers-schema is vulnerable to prototype pollution"
}