FKIE_CVE-2026-3634

Vulnerability from fkie_nvd - Published: 2026-03-17 10:16 - Updated: 2026-03-19 19:52
Summary
A flaw was found in libsoup. An attacker controlling the value used to set the Content-Type header can inject a Carriage Return Line Feed (CRLF) sequence due to improper input sanitization in the `soup_message_headers_set_content_type()` function. This vulnerability allows for the injection of arbitrary header-value pairs, potentially leading to HTTP header injection and response splitting attacks.

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gnome:libsoup:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "C5BAC4F4-3ACD-4F4D-920C-F920FD2C5472",
              "vulnerable": true
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in libsoup. An attacker controlling the value used to set the Content-Type header can inject a Carriage Return Line Feed (CRLF) sequence due to improper input sanitization in the `soup_message_headers_set_content_type()` function. This vulnerability allows for the injection of arbitrary header-value pairs, potentially leading to HTTP header injection and response splitting attacks."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una falla en libsoup. Un atacante que controla el valor utilizado para establecer el encabezado Content-Type puede inyectar una secuencia de Retorno de Carro y Salto de L\u00ednea (CRLF) debido a una sanitizaci\u00f3n de entrada inadecuada en la funci\u00f3n `soup_message_headers_set_content_type()`. Esta vulnerabilidad permite la inyecci\u00f3n de pares arbitrarios de encabezado-valor, potencialmente conduciendo a la inyecci\u00f3n de encabezados HTTP y ataques de divisi\u00f3n de respuesta."
    }
  ],
  "id": "CVE-2026-3634",
  "lastModified": "2026-03-19T19:52:33.170",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 3.9,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 0.5,
        "impactScore": 3.4,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  },
  "published": "2026-03-17T10:16:00.860",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://access.redhat.com/security/cve/CVE-2026-3634"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2445129"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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        "Issue Tracking",
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      "url": "https://gitlab.gnome.org/GNOME/libsoup/-/issues/485"
    },
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      "tags": [
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        "Issue Tracking",
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      "url": "https://gitlab.gnome.org/GNOME/libsoup/-/issues/485"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-93"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}


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