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node-forge ASN.1 Unbounded Recursion

Type: advisorySources: OSV

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Uncontrolled Recursion vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft deep ASN.1 structures that trigger unbounded recursive parsing. This leads to a Denial-of-Service (DoS) via stack exhaustion when parsing untrusted DER inputs. This issue has been patched in version 1.3.2.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2025-66031
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 13:23 UTC · Revision 1

Source evidence

node-forge ASN.1 Unbounded Recursion

core-osv · Original source

Published 26 Nov 2025, 22:23 UTC

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Uncontrolled Recursion vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft deep ASN.1 structures that trigger unbounded recursive parsing. This leads to a Denial-of-Service (DoS) via stack exhaustion when parsing untrusted DER inputs. This issue has been patched in version 1.3.2.

osv:CVE-2025-66031
Complete source record
{
  "id": "9b15bc3a122757719d9ee25ed3aab78fa5765cb695da90ee3efc86126f9fc40d",
  "url": "https://osv.dev/vulnerability/CVE-2025-66031",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "node-forge ASN.1 Unbounded Recursion",
    "summary": "Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Uncontrolled Recursion vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft deep ASN.1 structures that trigger unbounded recursive parsing. This leads to a Denial-of-Service (DoS) via stack exhaustion when parsing untrusted DER inputs. This issue has been patched in version 1.3.2.",
    "evidence": "osv:CVE-2025-66031",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-66031",
      "aliases": [
        "CVE-2025-66031",
        "GHSA-554w-wpv2-vw27"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/digitalbazaar/forge",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "235ad3e70e4fdfdca4fdeb662dfba6588e2c38bd"
                },
                {
                  "fixed": "260425c6167a38aae038697132483b5517b26451"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:digitalbazaar:forge:*:*:*:*:*:node.js:*:*",
                    "range": [
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                      {
                        "fixed": "1.3.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "260425c6167a38aae038697132483b5517b26451"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.3.1",
            "v1.3.0",
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66031.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:35.596392274Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66031.json",
        "https://github.com/digitalbazaar/forge/security/advisories/GHSA-554w-wpv2-vw27",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-66031",
        "https://github.com/digitalbazaar/forge/commit/260425c6167a38aae038697132483b5517b26451"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-674"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66031.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-66031",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 503018,
  "published_at": "2025-11-26T22:23:26.013+00:00"
}