« Volver al listado

CVE-2026-45720

Estado: AplazadaAlta (7)—

Omni manages Kubernetes on bare metal, virtual machines, or in a cloud. Prior to 1.6.6 and from 1.7.0 until 1.7.3, SAML.getSession in internal/pkg/auth/interceptor/saml.go checks SAMLAssertion.Used and marks it used in separate state operations. Concurrent requests carrying the same captured saml-session token can each observe the assertion as unused and obtain authentication as the victim before either update is visible.

Leer descripción completaMostrar menos

The attacker can invoke SAML-protected gRPC endpoints, use ConfirmPublicKey to create multiple persistent credentials tied to the victim, and generate audit entries attributed to the victim, with the resulting access potentially affecting confidentiality, integrity, and availability according to the victim's privileges. This issue is fixed in versions 1.6.6 and 1.7.3.

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.

Condición TOCTOU en validación de sesión SAML permite obtener autenticación como víctima sin privilegios previos (acceso local a token), crear credenciales persistentes y modificar registros de auditoría.

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

Multi-factor AuthenticationRestrict File and Directory PermissionsPrivileged Account ManagementPassword PoliciesRemote Data StorageEncrypt Sensitive Information

Tecnologías afectadas (1)

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

Siderolabs — OmniAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-45720",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45720",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-17T20:21:30.412238Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "siderolabs",
          "product": "omni",
          "versions": [
            {
              "status": "affected",
              "version": "< 1.6.6"
            },
            {
              "status": "affected",
              "version": ">= 1.7.0, < 1.7.3"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-09-17T20:16:49.190",
  "references": [
    {
      "url": "https://github.com/siderolabs/omni/commit/272d3f4dd00e778b39fde09afde35575fe13ef13",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/siderolabs/omni/commit/4c4c1e2d8226914f26774a309a91595f168ee921",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/siderolabs/omni/commit/ced79da6c032d2103803eb53343d0916cc957d2a",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/siderolabs/omni/pull/2816",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/siderolabs/omni/releases/tag/v1.6.6",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/siderolabs/omni/releases/tag/v1.7.3",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/siderolabs/omni/security/advisories/GHSA-5x9f-6vg5-qg4m",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-294"
        },
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Omni manages Kubernetes on bare metal, virtual machines, or in a cloud. Prior to 1.6.6 and from 1.7.0 until 1.7.3, SAML.getSession in internal/pkg/auth/interceptor/saml.go checks SAMLAssertion.Used and marks it used in separate state operations. Concurrent requests carrying the same captured saml-session token can each observe the assertion as unused and obtain authentication as the victim before either update is visible. The attacker can invoke SAML-protected gRPC endpoints, use ConfirmPublicKey to create multiple persistent credentials tied to the victim, and generate audit entries attributed to the victim, with the resulting access potentially affecting confidentiality, integrity, and availability according to the victim's privileges. This issue is fixed in versions 1.6.6 and 1.7.3."
    }
  ],
  "lastModified": "2026-09-24T21:25:27.050",
  "sourceIdentifier": "security-advisories@github.com"
}