CVE•Published 2026-03-27•Modified 2026-07-15•0 articles on news•5 live references•NVD data

CVE-2026-33891Digitalbazaar · Forge

Vulnerability data via NVD (ingested)

CVSS v3.1

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS percentile

Exploit Prediction Scoring System · top 56% of all CVEs

Weaknesses (CWE)

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')CWE-606Unchecked Input for Loop Condition

Description

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, a Denial of Service (DoS) vulnerability exists in the node-forge library due to an infinite loop in the BigInteger.modInverse() function (inherited from the bundled jsbn library). When modInverse() is called with a zero value as input, the internal Extended Euclidean Algorithm enters an unreachable exit condition, causing the process to hang indefinitely and consume 100% CPU. Version 1.4.0 patches the issue.

Timeline

Published 2026-03-27

Modified 2026-07-15

External references

NVD MITRE Exploit-DB GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-33891

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Digitalbazaar Forge"

All exposed Digitalbazaar Forge instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Forge"

HTTP body or banner mentions "Forge" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-33891