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nodejs — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2018-12120

Node.js: All versions prior to Node.js 6.15.0: Debugger port 5858 listens on any interface by default: When the debugger is enabled with `node --debug` or `node debug`, it listens to port 5858 on all interfaces by default. This may allow remote computers to attach to the debug port and evaluate arbitrary JavaScript. The default interface is now localhost. It has always been possible to start the debugger on a specific interface, such as `node --debug=localhost`. The debugger was removed in Node.js 8 and replaced with the inspector, so no versions from 8 and later are vulnerable.

Products
nodejs
Affected versions
Not specified
Fixed versions
8.9.3~dfsg-5
CVEs
CVE-2018-12120
Confirmed fixed CVEs
Not specified
Updated in this feed
28 Oct 2026, 11:07 UTC · Revision 1

Source evidence

DEBIAN-CVE-2018-12120

core-osv · Original source

Published 28 Nov 2018, 17:29 UTC

Node.js: All versions prior to Node.js 6.15.0: Debugger port 5858 listens on any interface by default: When the debugger is enabled with `node --debug` or `node debug`, it listens to port 5858 on all interfaces by default. This may allow remote computers to attach to the debug port and evaluate arbitrary JavaScript. The default interface is now localhost. It has always been possible to start the debugger on a specific interface, such as `node --debug=localhost`. The debugger was removed in Node.js 8 and replaced with the inspector, so no versions from 8 and later are vulnerable.

osv:DEBIAN-CVE-2018-12120

nodejs

Fixed versions: 8.9.3~dfsg-5

nodejs

Fixed versions: 8.9.3~dfsg-5

nodejs

Fixed versions: 8.9.3~dfsg-5

Complete source record
{
  "id": "10ba124e0089ea7329d24325be55333ee4f0899bfc9afe2ef10e3f140d6f57c2",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-12120",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2018-12120",
    "summary": "Node.js: All versions prior to Node.js 6.15.0: Debugger port 5858 listens on any interface by default: When the debugger is enabled with `node --debug` or `node debug`, it listens to port 5858 on all interfaces by default. This may allow remote computers to attach to the debug port and evaluate arbitrary JavaScript. The default interface is now localhost. It has always been possible to start the debugger on a specific interface, such as `node --debug=localhost`. The debugger was removed in Node.js 8 and replaced with the inspector, so no versions from 8 and later are vulnerable.",
    "evidence": "osv:DEBIAN-CVE-2018-12120",
    "products": [
      {
        "name": {
          "value": "nodejs",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8.9.3~dfsg-5",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "nodejs",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8.9.3~dfsg-5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "nodejs",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8.9.3~dfsg-5",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2018-12120",
      "aliases": [
        "DEBIAN-CVE-2018-12120"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8.9.3~dfsg-5"
                }
              ]
            }
          ],
          "package": {
            "name": "nodejs",
            "purl": "pkg:deb/debian/nodejs?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12120.json"
          },
          "ecosystem_specific": {
            "urgency": "unimportant"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8.9.3~dfsg-5"
                }
              ]
            }
          ],
          "package": {
            "name": "nodejs",
            "purl": "pkg:deb/debian/nodejs?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12120.json"
          },
          "ecosystem_specific": {
            "urgency": "unimportant"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "8.9.3~dfsg-5"
                }
              ]
            }
          ],
          "package": {
            "name": "nodejs",
            "purl": "pkg:deb/debian/nodejs?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-12120.json"
          },
          "ecosystem_specific": {
            "urgency": "unimportant"
          }
        }
      ],
      "modified": "2026-10-09T09:47:27.236493391Z",
      "provider": "osv",
      "upstream": [
        "CVE-2018-12120"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2018-12120"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2018-12120",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 111524,
  "published_at": "2018-11-28T17:29:00.29+00:00"
}