CVE-2026-0719

Estado: AplazadaAlta (8.6)—
A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in incorrect memory allocation on the stack, followed by unsafe memory copying. As a result, applications using libsoup may crash unexpectedly, creating a denial-of-service risk.
CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Puntuación base: 8.6
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.61%
Percentil entre todas las CVEs puntuadas: 47
Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1499.004 Application or System Exploitationimpact75 %
Impacto secundarioT1068 Exploitation for Privilege Escalationprivilege escalation65 %
Vector CVSS AV:N/AC:L/PR:N/UI:N indica red sin autenticación; CWE-121 (stack buffer overflow) en libsoup NTLM puede causar crash (DoS) o ejecución de código; impacto primario es negación de servicio, secundario escalada si hay corrupción de memoria.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network Traffic Application Isolation and Sandboxing Exploit Protection Update Software Vulnerability Scanning Threat Intelligence Program
Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Gnome — Libsoup^AI
CWE

CWE-121
CWE-121
Referencias

JSON original (NVD)

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      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
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      "url": "https://access.redhat.com/errata/RHSA-2026:2514",
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      "url": "https://access.redhat.com/errata/RHSA-2026:2528",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
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      "url": "https://access.redhat.com/errata/RHSA-2026:2628",
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      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
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    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-0719",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
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    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2427906",
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    {
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0719.json",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
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  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in incorrect memory allocation on the stack, followed by unsafe memory copying. As a result, applications using libsoup may crash unexpectedly, creating a denial-of-service risk."
    }
  ],
  "lastModified": "2026-07-15T02:17:56.020",
  "sourceIdentifier": "secalert@redhat.com"
}