CVE-2026-118781

What it is

Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, the affected implementation used BigInteger.prototype.modInverse(), bnModInverse(), lib/jsbn.js, RSA public exponent e to process the relevant input or security decision. node-forge's bundled jsbn implementation entered an infinite loop when BigInteger.prototype.modInverse() received a negative value or modulus. An attacker who could control the RSA public exponent passed to key generation, or a direct modInverse() operand, could block the Node.js event loop at full CPU. Parsed DER, PEM, JWK, PKCS#12, X.509, and TLS values are unsigned and cannot trigger this issue. This issue is fixed in version 1.4.1.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. Limited direct impact.

Exploit odds

0.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-10-29 19:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-11-10 19:33 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.1% in the next 30 days (EPSS).
• Severity: 2.9 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2026-10-29 19:17 UTC

Last modified

2026-11-10 19:33 UTC

Exploit probability

0.1% · EPSS, next 30 days

Weakness

CWE-835

Record status

Analyzed

Affected

• Digitalbazaar Forge < 1.4.1

Attack profile CVSS 3.1 · 2.9

Attack vector

Local

Complexity

High

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-118781.md and follow it. Check whether this project is affected by CVE-2026-118781. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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