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CVE-2026-73196

Full vulnerability record from the local CVENow database.

Description

A flaw was found in FreeIPA. A low-privilege authenticated user can exploit this vulnerability by submitting an oversized One-Time Password (OTP) key value. This oversized key is then decoded and re-encoded without proper size limits, consuming excessive CPU and memory resources. This can lead to a denial of service, degrading the availability of the IPA service.

Severity
MEDIUM
CVSS score
6.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-08-20 11:16:21.417000
Last modified
2026-10-27 10:10:00.240000
View original CVE JSON
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  "id": "CVE-2026-73196",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-20T11:16:21.417",
  "lastModified": "2026-10-27T10:10:00.240",
  "vulnStatus": "Analyzed",
  "cveTags": [],
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      "lang": "en",
      "value": "A flaw was found in FreeIPA. A low-privilege authenticated user can exploit this vulnerability by submitting an oversized One-Time Password (OTP) key value. This oversized key is then decoded and re-encoded without proper size limits, consuming excessive CPU and memory resources. This can lead to a denial of service, degrading the availability of the IPA service."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en FreeIPA. Un usuario autenticado con bajos privilegios puede explotar esta vulnerabilidad al enviar un valor de clave de Contraseña de Un Solo Uso (OTP) sobredimensionado. Esta clave sobredimensionada es luego decodificada y recodificada sin límites de tamaño adecuados, consumiendo recursos excesivos de CPU y memoria. Esto puede llevar a una denegación de servicio, degradando la disponibilidad del servicio IPA."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
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          "product": "Red Hat Enterprise Linux 10",
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          "packageName": "ipa",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10"
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