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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00115.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
digitalbazaar forge affected
Version Status Constraints
< 1.3.2 affected —

Configuration 1 [-]

cpe:2.3:a:digitalbazaar:forge:*:*:*:*:*:node.js:*:*

No data.

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Vendors Products
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Forge Subscribe

Project Subscriptions

Vendors Products
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Forge Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-554w-wpv2-vw27 node-forge has ASN.1 Unbounded Recursion
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/digitalbazaar/forge/commit/260425c6167a38aae038697132483b5517b26451 cve-icon cve-icon cve-icon
https://github.com/digitalbazaar/forge/security/advisories/GHSA-554w-wpv2-vw27 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-66031 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-66031 cve-icon
History

Sat, 06 Dec 2025 00:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:digitalbazaar:forge:*:*:*:*:*:node.js:*:*
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

 cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Wed, 03 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

threat_severity

Moderate

Fri, 28 Nov 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 27 Nov 2025 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Digitalbazaar
Digitalbazaar forge
Vendors & Products Digitalbazaar
Digitalbazaar forge

Wed, 26 Nov 2025 22:45:00 +0000

Type Values Removed Values Added
Description 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.
Title node-forge ASN.1 Unbounded Recursion
Weaknesses CWE-674
References
Metrics cvssV4_0

{'score': 8.7, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-11-28T18:27:06.242Z

Reserved: 2025-11-21T01:08:02.614Z

Link: CVE-2025-66031

cve-icon Vulnrichment

Updated: 2025-11-28T18:26:46.170Z

cve-icon NVD

Status : Analyzed

Published: 2025-11-26T23:15:49.397

Modified: 2025-12-06T00:22:18.840

Link: CVE-2025-66031

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-11-26T22:23:26Z

Links: CVE-2025-66031 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-11-27T16:26:23Z

Weaknesses