Catalogue CVE

CVE-2026-21710

A flaw in Node.js HTTP request handling causes an…

A flaw in Node.js HTTP request handling causes an uncaught `TypeError` when a request is received with a header named `__proto__` and the application accesses `req.headersDistinct`. When this occurs, `dest["__proto__"]` resolves to `Object.prototype` rather than `undefined`, causing `.push()` to be called on a non-array. This exception is thrown synchronously inside a property getter and cannot be intercepted by `error` event listeners, meaning it cannot be handled without wrapping every `req.headersDistinct` access in a `try/catch`. * This vulnerability affects all Node.js HTTP servers on **20.x, 22.x, 24.x, and v25.x**

Gravité: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Mar 24, 2026, 11:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 25.44% · Oct 27, 2026

Projects and upstream resources

[nodejs][Source-reported homepage]

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.

Distribution / release	Package	Version	Status	Source
Debiantrixie-security	nodejs	`20.19.2+dfsg-1+deb13u3`	Fixed	[CVE-2026-21710]
Debiantrixie	nodejs	`20.19.2+dfsg-1+deb13u2`	FixedDistribution-reported fixed boundary	[CVE-2026-21710]
Debiansid	nodejs	`22.22.2+dfsg+~cs22.19.15-1`	FixedDistribution-reported fixed boundary	[CVE-2026-21710]
Debiansid	nodejs	`24.22.2+dfsg+~cs24.19.2-1`	Fixed	[CVE-2026-21710]
Debianforky	nodejs	`22.22.2+dfsg+~cs22.19.15-1`	FixedDistribution-reported fixed boundary	[CVE-2026-21710]
Debianforky	nodejs	`24.21.0+dfsg+~cs24.13.4-1`	Fixed	[CVE-2026-21710]
Debianbookworm-security	nodejs	`18.20.4+dfsg-1~deb12u3`	Fixed	[CVE-2026-21710]
Debianbookworm	nodejs	`18.20.4+dfsg-1~deb12u2`	FixedDistribution-reported fixed boundary	[CVE-2026-21710]

Showing 8 fix observations. All 14 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
UnknownRelease not reported	nodejs	`18.20.4+dfsg-1~deb12u2`	UnknownSource applicability is not established	Provider not reported
Alpine3.21	nodejs	`22.22.2-r0`	UnknownSource applicability is not established	[ALPINE-CVE-2026-21710]Oct 1, 2026, 2:17:49 AM UTC
Alpine3.22	nodejs	`22.22.2-r0`	UnknownSource applicability is not established	[ALPINE-CVE-2026-21710]Oct 1, 2026, 2:17:49 AM UTC
Alpine3.23	nodejs	`24.14.1-r0`	UnknownSource applicability is not established	[ALPINE-CVE-2026-21710]Oct 1, 2026, 2:17:49 AM UTC
Alpine3.24	nodejs	`24.14.1-r0`	UnknownSource applicability is not established	[ALPINE-CVE-2026-21710]Oct 1, 2026, 2:17:49 AM UTC
Debianbookworm	nodejs	`18.20.4+dfsg-1~deb12u2`	FixedDistribution-reported fixed boundary	[CVE-2026-21710]
Debianbookworm-security	nodejs	`18.20.4+dfsg-1~deb12u3`	Fixed	[CVE-2026-21710]
Debianforky	nodejs	`22.22.2+dfsg+~cs22.19.15-1`	FixedDistribution-reported fixed boundary	[CVE-2026-21710]
Debianforky	nodejs	`24.21.0+dfsg+~cs24.13.4-1`	Fixed	[CVE-2026-21710]
Debiansid	nodejs	`22.22.2+dfsg+~cs22.19.15-1`	FixedDistribution-reported fixed boundary	[CVE-2026-21710]
Debiansid	nodejs	`24.22.2+dfsg+~cs24.19.2-1`	Fixed	[CVE-2026-21710]
Debiantrixie	nodejs	`20.19.2+dfsg-1+deb13u2`	FixedDistribution-reported fixed boundary	[CVE-2026-21710]
Debiantrixie-security	nodejs	`20.19.2+dfsg-1+deb13u3`	Fixed	[CVE-2026-21710]
Opensusetumbleweed	nodejs24	`24.14.1-1.1`	UnknownSource applicability is not established	[OPENSUSE-SU-2026:10504-1]Apr 9, 2026, 8:01:03 AM UTC

Original provider fields

{
  "package_releases": [
    {
      "name": "nodejs",
      "status": "fixed",
      "release": "sid",
      "version": "24.22.2+dfsg+~cs24.19.2-1"
    },
    {
      "name": "nodejs",
      "status": "fixed",
      "release": "forky",
      "version": "24.21.0+dfsg+~cs24.13.4-1"
    },
    {
      "name": "nodejs",
      "status": "fixed",
      "release": "trixie",
      "version": "20.19.2+dfsg-1+deb13u2"
    },
    {
      "name": "nodejs",
      "status": "fixed",
      "release": "trixie-security",
      "version": "20.19.2+dfsg-1+deb13u3"
    },
    {
      "name": "nodejs",
      "status": "fixed",
      "release": "bookworm",
      "version": "18.20.4+dfsg-1~deb12u2"
    },
    {
      "name": "nodejs",
      "status": "fixed",
      "release": "bookworm-security",
      "version": "18.20.4+dfsg-1~deb12u3"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "nodejs",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "22.22.2+dfsg+~cs22.19.15-1"
    },
    {
      "bug": null,
      "name": "nodejs",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "22.22.2+dfsg+~cs22.19.15-1"
    },
    {
      "bug": null,
      "name": "nodejs",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "20.19.2+dfsg-1+deb13u2"
    },
    {
      "bug": null,
      "name": "nodejs",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "18.20.4+dfsg-1~deb12u2"
    }
  ],
  "distribution_packages": [
    {
      "name": "nodejs",
      "fixed_version": "18.20.4+dfsg-1~deb12u2",
      "applicability_unknown": true
    },
    {
      "name": "node.js",
      "ranges": [
        {
          "fixed": "",
          "introduced": "25.0.0",
          "last_affected": "25.8.1",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21710",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-21710",
      "provider_updated_at": "2026-08-19T14:32:04.833"
    },
    {
      "name": "enterprise_linux",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21710",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-21710",
      "provider_updated_at": "2026-08-19T14:32:04.833"
    },
    {
      "name": "enterprise_linux_eus",
      "ranges": [],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21710",
      "fixed_version": "",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-21710",
      "provider_updated_at": "2026-08-19T14:32:04.833"
    },
    {
      "name": "nodejs",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "22.22.2-r0"
            }
          ]
        }
      ],
      "release": "3.21",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2026-21710",
      "fixed_version": "22.22.2-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2026-21710",
      "provider_updated_at": "2026-10-01T02:17:49.204680831Z",
      "applicability_unknown": true
    },
    {
      "name": "nodejs",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "22.22.2-r0"
            }
          ]
        }
      ],
      "release": "3.22",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2026-21710",
      "fixed_version": "22.22.2-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2026-21710",
      "provider_updated_at": "2026-10-01T02:17:49.204680831Z",
      "applicability_unknown": true
    },
    {
      "name": "nodejs",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "24.14.1-r0"
            }
          ]
        }
      ],
      "release": "3.23",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2026-21710",
      "fixed_version": "24.14.1-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2026-21710",
      "provider_updated_at": "2026-10-01T02:17:49.204680831Z",
      "applicability_unknown": true
    },
    {
      "name": "nodejs",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "24.14.1-r0"
            }
          ]
        }
      ],
      "release": "3.24",
      "versions": [],
      "ecosystem": "apk",
      "provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2026-21710",
      "fixed_version": "24.14.1-r0",
      "provider_source": "pypi",
      "provider_record_id": "ALPINE-CVE-2026-21710",
      "provider_updated_at": "2026-10-01T02:17:49.204680831Z",
      "applicability_unknown": true
    },
    {
      "name": "nodejs24",
      "distro": "opensuse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "24.14.1-1.1"
            }
          ]
        }
      ],
      "release": "tumbleweed",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/openSUSE-SU-2026:10504-1",
      "fixed_version": "24.14.1-1.1",
      "provider_source": "pypi",
      "provider_record_id": "OPENSUSE-SU-2026:10504-1",
      "provider_updated_at": "2026-04-09T08:01:03.581888Z",
      "applicability_unknown": true
    }
  ]
}

OpenFactory catalog packages

L’association des paquets est en cours.

[Debian 12 (Bookworm)]

[libnode108]Inconnu
Paquet source: [nodejs]
Détails (4)
- 18.20.4+dfsg-1~deb12u2 · amd64 · bookworm
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · arm64 · bookworm
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · amd64 · bookworm-security
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · arm64 · bookworm-security
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
[libnode-dev]Inconnu
Paquet source: [nodejs]
Détails (4)
- 18.20.4+dfsg-1~deb12u2 · amd64 · bookworm
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · arm64 · bookworm
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · amd64 · bookworm-security
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · arm64 · bookworm-security
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
[nodejs]Inconnu
Détails (4)
- 18.20.4+dfsg-1~deb12u2 · amd64 · bookworm
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · arm64 · bookworm
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · amd64 · bookworm-security
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · arm64 · bookworm-security
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
[nodejs-doc]Inconnu
Paquet source: [nodejs]
Détails (4)
- 18.20.4+dfsg-1~deb12u2 · all · bookworm
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · all · bookworm
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · all · bookworm-security
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12
- 18.20.4+dfsg-1~deb12u2 · all · bookworm-security
  Corrigée · Corrigée: 18.20.4+dfsg-1~deb12u2
  nvd · nodejs · debian · bookworm; nvd · nodejs · debian · 12

[Debian 13 (Trixie)]

[libnode115]Inconnu
Paquet source: [nodejs]
Détails (5)
- 20.19.2+dfsg-1+deb13u2 · amd64 · trixie
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · arm64 · trixie
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · amd64 · trixie-security · Historical version
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · arm64 · trixie-security
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u3 · amd64 · trixie-security
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
[libnode-dev]Inconnu
Paquet source: [nodejs]
Détails (5)
- 20.19.2+dfsg-1+deb13u2 · amd64 · trixie
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · arm64 · trixie
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · amd64 · trixie-security · Historical version
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · arm64 · trixie-security
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u3 · amd64 · trixie-security
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
[nodejs]Inconnu
Détails (5)
- 20.19.2+dfsg-1+deb13u2 · amd64 · trixie
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · arm64 · trixie
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · amd64 · trixie-security · Historical version
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · arm64 · trixie-security
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u3 · amd64 · trixie-security
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
[nodejs-doc]Inconnu
Paquet source: [nodejs]
Détails (5)
- 20.19.2+dfsg-1+deb13u2 · all · trixie
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · all · trixie
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · all · trixie-security
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u2 · all · trixie-security · Historical version
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13
- 20.19.2+dfsg-1+deb13u3 · all · trixie-security
  Corrigée · Corrigée: 20.19.2+dfsg-1+deb13u2
  nvd · nodejs · debian · 13

[openSUSE Tumbleweed]

[corepack24]Inconnu
Paquet source: [nodejs24]
Détails (1)
- 24.18.1-1.1 · x86_64 · tumbleweed
  Inconnu · Corrigée: 24.14.1-1.1
  Version impact unknown
  nvd · nodejs24 · opensuse · tumbleweed
[nodejs24]Inconnu
Paquet source: [nodejs24]
Détails (1)
- 24.18.1-1.1 · x86_64 · tumbleweed
  Corrigée · Corrigée: 24.14.1-1.1
  nvd · nodejs24 · opensuse · tumbleweed
[nodejs24-devel]Inconnu
Paquet source: [nodejs24]
Détails (1)
- 24.18.1-1.1 · x86_64 · tumbleweed
  Inconnu · Corrigée: 24.14.1-1.1
  Version impact unknown
  nvd · nodejs24 · opensuse · tumbleweed
[nodejs24-docs]Inconnu
Paquet source: [nodejs24]
Détails (1)
- 24.18.1-1.1 · noarch · tumbleweed
  Inconnu · Corrigée: 24.14.1-1.1
  Version impact unknown
  nvd · nodejs24 · opensuse · tumbleweed
[npm24]Inconnu
Paquet source: [nodejs24]
Détails (1)
- 24.18.1-1.1 · x86_64 · tumbleweed
  Inconnu · Corrigée: 24.14.1-1.1
  Version impact unknown
  nvd · nodejs24 · opensuse · tumbleweed

Observé: Oct 27, 2026, 8:01:36 AM UTC

Références

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