GHSA-J452-XHG8-QG39

Vulnerability from github – Published: 2026-04-15 18:31 – Updated: 2026-04-16 21:33
VLAI?
Summary
Mafintosh's protocol-buffers-schema is vulnerable to prototype pollution
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.

Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "protocol-buffers-schema"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-5758"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-16T21:33:53Z",
    "nvd_published_at": "2026-04-15T18:17:24Z",
    "severity": "MODERATE"
  },
  "details": "JavaScript is vulnerable to prototype pollution in Mafintosh\u0027s 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": "GHSA-j452-xhg8-qg39",
  "modified": "2026-04-16T21:33:53Z",
  "published": "2026-04-15T18:31:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5758"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mafintosh/protocol-buffers-schema/pull/70"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mafintosh/protocol-buffers-schema"
    },
    {
      "type": "WEB",
      "url": "https://morielharush.github.io/2026/04/12/cve-2026-5758-protocol-buffers-schema-prototype-pollution"
    }
  ],
  "schema_version": "1.4.0",
  "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\u0027s protocol-buffers-schema is vulnerable to prototype pollution"
}


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