CVE catalog

CVE-2026-33891

Forge (also called `node-forge`) is a native…

[CVE catalog]

A flaw was found in the node-forge library, a JavaScript implementation of Transport Layer Security. This vulnerability, inherited from the bundled jsbn library, allows a remote attacker to cause a Denial of Service (DoS). When the BigInteger.modInverse() function is called with a zero value, it enters an infinite loop, causing the process to hang indefinitely and consume 100% of the CPU resources. node-forge: node-forge: Denial of Service via infinite loop in BigInteger.modInverse() The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Severity
High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.61% · Oct 27, 2026

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "forge",
      "ecosystem": "cpe",
      "fixed_version": ""
    },
    {
      "name": "forge",
      "ranges": [
        {
          "fixed": "",
          "introduced": "",
          "last_affected": "1.3.3",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "fixed_version": "",
      "provider_record_id": "NVD-CVE-2026-33891"
    },
    {
      "name": "node-node-forge",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "0.8.5~dfsg-2",
        "0.9.1~dfsg-1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-33891"
    },
    {
      "name": "node-node-forge",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "22.04",
      "versions": [
        "0.10.0~dfsg-3",
        "1.2.1~dfsg-2"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-33891"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

Observed:

References

[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]