CVE-2026-28898

{
  "id": "CVE-2026-28898",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-25T19:16:36.977",
  "lastModified": "2026-10-25T22:10:00.150",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "swift-nio-http2's HTTP/2-to-HTTP/1.1 codec did not validate pseudo-header values for control characters before placing them into the translated HTTP/1.1 message. swift-nio-http2 1.44.1 adds validation of all pseudo-header values (:path, :authority, :scheme, :method, and :status) at both the HPACK header validation layer and the HTTP/2-to-HTTP/1.1 translation layer. Requests or responses containing CR, LF, or NUL bytes in any pseudo-header value are now rejected with a connection error. This issue is fixed in swift-nio-http2 1.44.1."
    },
    {
      "lang": "es",
      "value": "El códec de HTTP/2 a HTTP/1.1 de swift-nio-http2 no validaba los valores de pseudo-encabezado en busca de caracteres de control antes de colocarlos en el mensaje HTTP/1.1 traducido. swift-nio-http2 1.44.1 añade la validación de todos los valores de pseudo-encabezado (:path, :authority, :scheme, :method y :status) tanto en la capa de validación de encabezados HPACK como en la capa de traducción de HTTP/2 a HTTP/1.1. Las solicitudes o respuestas que contienen bytes CR, LF o NUL en cualquier valor de pseudo-encabezado ahora son rechazadas con un error de conexión. Este problema está solucionado en swift-nio-http2 1.44.1."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apple",
          "product": "swift-nio-http2",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.44.1",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-25T19:28:33.856470Z",
          "id": "CVE-2026-28898",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-116"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apple:swiftnio_http\\/2:*:*:*:*:*:swift:*:*",
              "versionEndExcluding": "1.44.1",
              "matchCriteriaId": "91CCCE93-4741-4933-979E-CA213FCE87E0"
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  ],
  "references": [
    {
      "url": "https://github.com/advisories/GHSA-4px2-pw77-vc85",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}