Skip to content
Heist/ feed
UnratedFix available

DEBIAN-CVE-2026-84394

Type: advisorySource: OSV1 source record

fast-uri accepts a host that contains an unbalanced or misplaced authority bracket without reporting an error. A host that starts with an opening bracket but does not end with a closing bracket is neither validated as an IP literal nor canonicalized as a domain name, so parse() returns it as the host with error undefined, while Node's URL and the HTTP clients built on it resolve the same string to a different host. An application that reads the parsed host to make a host decision, such as an SSRF denylist, a redirect allowlist, or proxy routing, and then passes the original URL to an HTTP client evaluates its policy against a string that is not the host the request reaches. The same host is carried through normalize, equal, and resolve. This affects fast-uri versions 2.4.5, 3.1.6, and 4.1.3, and is fixed in 2.4.6, 3.1.7, and 4.1.4, where parse() reports a malformed host for any host that contains a bracket but is not a valid IPv6 literal.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-84394

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-84394

node-ajv

Source reference: /affected/0/package/name

Affected versions
8.12.0~ds+~2.1.1-5

Source reference: /affected/0/versions

8.17.1~ds+~3.0.1+~3.1.0-1

Source reference: /affected/0/versions

8.17.1~ds+~3.0.1+~3.1.0-2

Source reference: /affected/0/versions

8.17.1~ds+~3.0.1+~3.1.0-3

Source reference: /affected/0/versions

8.17.1~ds+~3.0.1+~3.1.0-4

Source reference: /affected/0/versions

8.18.0~ds+~cs6.1.1-1

Source reference: /affected/0/versions

8.18.0~ds+~cs6.1.1-2

Source reference: /affected/0/versions

8.20.0~ds+~cs6.1.3-1

Source reference: /affected/0/versions

8.20.0~ds+~cs7.1.2-1

Source reference: /affected/0/versions

8.20.0~ds+~cs7.1.3-1

Source reference: /affected/0/versions

8.20.0~ds+~cs7.1.3-2

Source reference: /affected/0/versions

8.20.0~ds+~cs7.1.3-3

Source reference: /affected/0/versions

8.20.0~ds+~cs7.1.4-1

Source reference: /affected/0/versions

8.20.0~ds+~cs7.1.5-1

Source reference: /affected/0/versions

8.20.0~ds+~cs7.1.6-1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

node-ajv

Source reference: /affected/1/package/name

Affected versions
8.12.0~ds+~2.1.1-5

Source reference: /affected/1/versions

8.17.1~ds+~3.0.1+~3.1.0-1

Source reference: /affected/1/versions

8.17.1~ds+~3.0.1+~3.1.0-2

Source reference: /affected/1/versions

8.17.1~ds+~3.0.1+~3.1.0-3

Source reference: /affected/1/versions

8.17.1~ds+~3.0.1+~3.1.0-4

Source reference: /affected/1/versions

8.18.0~ds+~cs6.1.1-1

Source reference: /affected/1/versions

8.18.0~ds+~cs6.1.1-2

Source reference: /affected/1/versions

8.20.0~ds+~cs6.1.3-1

Source reference: /affected/1/versions

8.20.0~ds+~cs7.1.2-1

Source reference: /affected/1/versions

8.20.0~ds+~cs7.1.3-1

Source reference: /affected/1/versions

8.20.0~ds+~cs7.1.3-2

Source reference: /affected/1/versions

8.20.0~ds+~cs7.1.3-3

Source reference: /affected/1/versions

8.20.0~ds+~cs7.1.4-1

Source reference: /affected/1/versions

Fixed versions
8.20.0~ds+~cs7.1.5-1

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "node-ajv",
      "purl": "pkg:deb/debian/node-ajv?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "8.12.0~ds+~2.1.1-5",
      "8.17.1~ds+~3.0.1+~3.1.0-1",
      "8.17.1~ds+~3.0.1+~3.1.0-2",
      "8.17.1~ds+~3.0.1+~3.1.0-3",
      "8.17.1~ds+~3.0.1+~3.1.0-4",
      "8.18.0~ds+~cs6.1.1-1",
      "8.18.0~ds+~cs6.1.1-2",
      "8.20.0~ds+~cs6.1.3-1",
      "8.20.0~ds+~cs7.1.2-1",
      "8.20.0~ds+~cs7.1.3-1",
      "8.20.0~ds+~cs7.1.3-2",
      "8.20.0~ds+~cs7.1.3-3",
      "8.20.0~ds+~cs7.1.4-1",
      "8.20.0~ds+~cs7.1.5-1",
      "8.20.0~ds+~cs7.1.6-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84394.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "8.20.0~ds+~cs7.1.5-1"
          }
        ]
      }
    ],
    "package": {
      "name": "node-ajv",
      "purl": "pkg:deb/debian/node-ajv?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "8.12.0~ds+~2.1.1-5",
      "8.17.1~ds+~3.0.1+~3.1.0-1",
      "8.17.1~ds+~3.0.1+~3.1.0-2",
      "8.17.1~ds+~3.0.1+~3.1.0-3",
      "8.17.1~ds+~3.0.1+~3.1.0-4",
      "8.18.0~ds+~cs6.1.1-1",
      "8.18.0~ds+~cs6.1.1-2",
      "8.20.0~ds+~cs6.1.3-1",
      "8.20.0~ds+~cs7.1.2-1",
      "8.20.0~ds+~cs7.1.3-1",
      "8.20.0~ds+~cs7.1.3-2",
      "8.20.0~ds+~cs7.1.3-3",
      "8.20.0~ds+~cs7.1.4-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84394.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#58487 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement