BaseFortify

Publication date: 2025-11-26

Last updated on: 2025-12-06

Assigner: GitHub, Inc.

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.

CVSS Scores

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Meta Information

Published

2025-11-26

Last Modified

2025-12-06

Generated

2026-07-06

AI Q&A

2025-11-27

EPSS Evaluated

2026-07-05

NVD

CVE-2025-66031

Affected Vendors & Products

Vendor	Product	Version / Range
digitalbazaar	forge	to 1.3.2 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-674	The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

Attack-Flow Graph

Executive Summary

This vulnerability is an Uncontrolled Recursion issue in the node-forge library (versions 1.3.1 and below). It allows remote, unauthenticated attackers to create deeply nested ASN.1 structures that cause the parser to recurse without limit. This unbounded recursion leads to stack exhaustion, resulting in a Denial-of-Service (DoS) when parsing untrusted DER inputs. The issue is fixed in version 1.3.2.

Impact Analysis

The vulnerability can cause a Denial-of-Service (DoS) condition by exhausting the stack during parsing of maliciously crafted ASN.1 data. This means an attacker can disrupt the availability of applications using vulnerable versions of node-forge by sending specially crafted inputs that crash or hang the service.

Mitigation Strategies

Update node-forge to version 1.3.2 or later, as this version contains the patch for the uncontrolled recursion vulnerability. Avoid parsing untrusted DER inputs with vulnerable versions until the update is applied.

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