{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:shepherdwind:velocity.js:*:*:*:*:*:node.js:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.1.5"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "a74b56073762f47d34a25abed2e1e10118faef02"
            }
          ],
          "repo": "https://github.com/shepherdwind/velocity.js",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-j658-c2gf-x6pq"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-1321"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44966.json"
  },
  "details": "Velocity.js is a JavaScript implementation of the Apache Velocity template engine. In 2.1.5 and earlier, a prototype pollution vulnerability was discovered in velocityjs. This issue occurs during the processing of #set directives in Velocity templates. If an application renders a template controlled by an attacker, it is possible to modify Object.prototype, potentially leading to Denial of Service (DoS) or Remote Code Execution (RCE) depending on the server environment.",
  "id": "CVE-2026-44966",
  "modified": "2026-07-08T05:36:10.675206333Z",
  "published": "2026-05-26T21:21:29.986Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44966.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/shepherdwind/velocity.js/security/advisories/GHSA-j658-c2gf-x6pq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44966"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Velocity.js: Prototype Pollution in #set path assignment"
}