Security advisory

{
  "id": "03a7d8bfb5b349fbfba63da329c067496ea203d5dfc4cdeaada5e1ce2b31b70a",
  "url": "https://osv.dev/vulnerability/CVE-2021-23369",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-23369",
    "summary": "The package handlebars before 4.7.7 are vulnerable to Remote Code Execution (RCE) when selecting certain compiling options to compile templates coming from an untrusted source.",
    "evidence": "osv:CVE-2021-23369",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-23369",
      "aliases": [
        "CVE-2021-23369",
        "GHSA-f2jv-r9rf-7988"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/handlebars-lang/handlebars.js",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a9a8e403213583ca90cb7c872d3a22796c37d961"
                },
                {
                  "fixed": "b6d3de7123eebba603e321f04afdbae608e8fea8"
                },
                {
                  "fixed": "f0589701698268578199be25285b2ebea1c1e427"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:handlebarsjs:handlebars:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.7.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "b6d3de7123eebba603e321f04afdbae608e8fea8"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f0589701698268578199be25285b2ebea1c1e427"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.7.6",
            "v4.7.5",
            "v4.7.4",
            "v4.7.3",
            "v4.7.2",
            "v4.7.1",
            "v4.7.0",
            "v4.6.0",
            "v4.5.3",
            "v4.5.2",
            "v4.5.1",
            "v4.5.0",
            "v4.4.3",
            "v4.4.2",
            "v4.4.1",
            "v4.2.1",
            "v4.3.4",
            "v4.4.0",
            "v4.3.3",
            "v4.3.2",
            "v4.3.1",
            "v4.3.0",
            "v4.2.0",
            "v4.1.2-0",
            "v4.1.2",
            "v1.3.0",
            "v4.1.1",
            "v4.0.12",
            "v4.0.11",
            "v4.0.10",
            "v4.0.9",
            "v4.0.8",
            "v4.0.7",
            "v4.0.6",
            "v4.0.5",
            "v3.0.3",
            "v4.0.4",
            "v4.0.3",
            "v4.0.2",
            "v4.0.1",
            "v4.0.0",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0",
            "v2.0.0",
            "v2.0.0-beta.1",
            "v2.0.0-alpha.4",
            "v2.0.0-alpha.3",
            "v2.0.0-alpha.2",
            "v2.0.0-alpha.1",
            "v1.2.1",
            "v1.2.0",
            "v1.1.2",
            "v1.1.1",
            "v1.1.0",
            "v1.0.12",
            "1.0.0",
            "v1.0.11",
            "1.0.0-rc.4",
            "v1.0.10",
            "v1.0.9",
            "1.0.0-rc.3",
            "v1.0.8",
            "1.0.rc.2",
            "v1.0.6-2",
            "v1.0.6",
            "v1.0.6beta",
            "1.0.0.beta.1",
            "0.9.0.pre.4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23369.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:31.889996589Z",
      "provider": "osv",
      "references": [
        "https://security.netapp.com/advisory/ntap-20210604-0008/",
        "https://github.com/handlebars-lang/handlebars.js/commit/b6d3de7123eebba603e321f04afdbae608e8fea8",
        "https://github.com/handlebars-lang/handlebars.js/commit/f0589701698268578199be25285b2ebea1c1e427",
        "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1074950",
        "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1074951",
        "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1074952",
        "https://snyk.io/vuln/SNYK-JS-HANDLEBARS-1056767"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-23369",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385491,
  "published_at": "2021-04-12T14:15:14.383+00:00"
}