CVE-2026-75899

Что произошло

fast-uri is a URI parser for Node.js. It decodes percent escapes in a hostname during parsing and then decodes the parsed hostname a second time during authority recomposition, so a single call to normalize or resolve can turn nested percent-encoded input into a different network destination such as a loopback hostname or address. For example, a doubly encoded host that spells out a loopback name decodes to that live host in one operation, which contradicts RFC 3986 section 2.4 that an implementation must not decode the same string more than once. An application that normalizes or resolves an untrusted HTTP-family URI before outbound routing, redirect validation, or a host-policy check can receive a destination different from the one the original encoded host represented, giving a server-side request forgery and host-policy bypass primitive. This is an incomplete-fix variant of CVE-2026-6322. The affected versions are 2.4.1 up to but not including 2.4.5, 3.1.2 up to but not including 3.1.6, and 4.0.0 up to but not including 4.1.3. The issue is fixed in 2.4.5, 3.1.6, and 4.1.3, which normalize percent escapes once and preserve encoded percent signs. Users should upgrade to a patched version.

Что делать

dpkg-query -W -f='${Package}	${Version}\n'

rpm -qa --qf '%{NAME}\t%{VERSION}-%{RELEASE}\n'

Get-HotFix | Select-Object HotFixID, InstalledOn

Продукты и затронутые версии

{
  "status": "affected",
  "version": "2.4.1",
  "lessThan": "2.4.5",
  "versionType": "semver"
}

{
  "status": "unaffected",
  "version": "2.4.5",
  "versionType": "semver"
}

{
  "status": "affected",
  "version": "3.1.2",
  "lessThan": "3.1.6",
  "versionType": "semver"
}

{
  "status": "unaffected",
  "version": "3.1.6",
  "versionType": "semver"
}

{
  "status": "affected",
  "version": "4.0.0",
  "lessThan": "4.1.3",
  "versionType": "semver"
}

{
  "status": "unaffected",
  "version": "4.1.3",
  "versionType": "semver"
}

{
  "status": "affected",
  "version": "*",
  "versionEndExcluding": "2.4.5",
  "versionStartIncluding": "2.4.1"
}

{
  "status": "affected",
  "version": "*",
  "versionEndExcluding": "3.1.6",
  "versionStartIncluding": "3.1.2"
}

{
  "status": "affected",
  "version": "*",
  "versionEndExcluding": "4.1.3",
  "versionStartIncluding": "4.0.0"
}

CVSS: оценки и векторы

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

Источники и ссылки

{
  "cwes": [
    "cve"
  ],
  "epss": {
    "source": "epss",
    "received_at": "2026-11-04T21:19:54.109945+00:00"
  },
  "title": {
    "source": "cve",
    "received_at": "2026-10-28T21:21:30.481090+00:00"
  },
  "scores": [
    "cve"
  ],
  "status": {
    "source": "cve",
    "received_at": "2026-10-28T21:21:30.481090+00:00"
  },
  "affected": [
    "cve",
    "osv"
  ],
  "published": {
    "source": "cve",
    "received_at": "2026-10-28T21:21:30.481090+00:00"
  },
  "solutions": [],
  "percentile": {
    "source": "epss",
    "received_at": "2026-11-04T21:19:54.109945+00:00"
  },
  "references": [
    "cve",
    "osv"
  ],
  "description": {
    "source": "cve",
    "received_at": "2026-10-28T21:21:30.481090+00:00"
  },
  "workarounds": [],
  "configurations": []
}

Хронология записи

1. Данные обновлены05.11.2026, 00:19
2. Данные обновлены04.11.2026, 00:15
3. Данные обновлены03.11.2026, 00:14
4. Данные обновлены02.11.2026, 15:14
5. Данные обновлены02.11.2026, 00:12
6. Данные обновлены31.10.2026, 11:59
7. Данные обновлены29.10.2026, 12:40
8. Опубликована29.10.2026, 00:21

Личная заметка и статус

Другие CVE того же продукта