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CVE-2026-96275

Estado: Pendiente de análisisAlta (8.8)—

A malicious or compromised Flatpak repository can write attacker-controlled content to arbitrary locations on the host filesystem via extract_extra_data(). On system installs, the write happens as root. Two issues combine: `files/extra` is resolved via path operations that follow symlinks, and blob names from `xa.extra-data-sources` are not sanitized against `..` traversal.

CVSS

Probabilidad de explotación (EPSS)

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.

CWE-22 path traversal con UI:R (interacción del usuario para instalar app maliciosa) en Flatpak repository. Impacto: escritura en ubicaciones arbitrarias (T1565.001) y exfiltración potencial (T1005) al leer archivos del host.

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

Restrict File and Directory PermissionsRemote Data StorageEncrypt Sensitive InformationApplication Isolation and SandboxingExploit ProtectionUpdate Software

Tecnologías afectadas (1)

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

Flatpak — FlatpakAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-96275",
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        "ssvcData": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-25T18:09:09.886853Z"
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          "userInteraction": "REQUIRED",
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          "privilegesRequired": "NONE",
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          "vendor": "Red Hat",
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  "published": "2026-09-23T15:17:32.180",
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      "url": "https://access.redhat.com/security/cve/CVE-2026-96275",
      "source": "secalert@redhat.com"
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    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2539416",
      "source": "secalert@redhat.com"
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    {
      "url": "https://github.com/flatpak/flatpak/security/advisories/GHSA-fqx6-vh4p-42cg",
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  "vulnStatus": "Awaiting Analysis",
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      "value": "A malicious or compromised Flatpak repository can write attacker-controlled content to arbitrary locations on the host filesystem via extract_extra_data(). On system installs, the write happens as root. Two issues combine: `files/extra` is resolved via path operations that follow symlinks, and blob names from `xa.extra-data-sources` are not sanitized against `..` traversal."
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  ],
  "lastModified": "2026-09-25T18:17:34.003",
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