CVE-2026-5136

Estado: AnalizadaAlta (8.8)—

A flaw was found in Foreman. The Usergroup model in Foreman does not properly validate role assignments against the calling user's permissions. This allows an authenticated user with usergroup management permissions to attach arbitrary roles, including administrative roles, to a user group and then add themselves as a member. Successful exploitation of this vulnerability leads to full privilege escalation, granting the attacker administrator-level access.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 8.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.56%
Percentil entre todas las CVEs puntuadas: 44
Fecha de la puntuación: 4/10/2026

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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement75 %
Impacto principalT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto secundarioT1078 Valid Accountsstealth · persistence · privilege escalation · initial access80 %

AV:N, PR:L, acceso remoto autenticado a servicio Foreman sin interacción → T1210. Escalada a roles administrativos (T1068) y obtención de acceso privilegiado (T1078).

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

Threat Intelligence Program Privileged Account Management Application Isolation and Sandboxing Exploit Protection Update Software Application Developer Guidance

Tecnologías afectadas (2)

Redhat — Satellite Theforeman — Foreman

CWE

CWE-266

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-5136",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-5136",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-01T00:00:00+00:00"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secalert@redhat.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "cpes": [
            "cpe:/a:redhat:satellite:6.16::el8",
            "cpe:/a:redhat:satellite:6.16::el9",
            "cpe:/a:redhat:satellite_capsule:6.16::el8",
            "cpe:/a:redhat:satellite_capsule:6.16::el9",
            "cpe:/a:redhat:satellite_maintenance:6.16::el8",
            "cpe:/a:redhat:satellite_maintenance:6.16::el9",
            "cpe:/a:redhat:satellite_utils:6.16::el8",
            "cpe:/a:redhat:satellite_utils:6.16::el9"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Satellite 6.16 for RHEL 8",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:3.12.0.17-1.el8sat",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "foreman",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:satellite:6.16::el8",
            "cpe:/a:redhat:satellite:6.16::el9",
            "cpe:/a:redhat:satellite_capsule:6.16::el8",
            "cpe:/a:redhat:satellite_capsule:6.16::el9",
            "cpe:/a:redhat:satellite_maintenance:6.16::el8",
            "cpe:/a:redhat:satellite_maintenance:6.16::el9",
            "cpe:/a:redhat:satellite_utils:6.16::el8",
            "cpe:/a:redhat:satellite_utils:6.16::el9"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Satellite 6.16 for RHEL 9",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:3.12.0.17-1.el9sat",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "foreman",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:satellite:6.17::el9",
            "cpe:/a:redhat:satellite_capsule:6.17::el9",
            "cpe:/a:redhat:satellite_maintenance:6.17::el9",
            "cpe:/a:redhat:satellite_utils:6.17::el9"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Satellite 6.17 for RHEL 9",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:3.14.0.17-1.el9sat",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "foreman",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:satellite:6.18::el9",
            "cpe:/a:redhat:satellite_capsule:6.18::el9",
            "cpe:/a:redhat:satellite_utils:6.18::el9"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Satellite 6.18 for RHEL 9",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:3.16.0.17-1.el9sat",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "foreman",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:satellite:6.19::el9",
            "cpe:/a:redhat:satellite_capsule:6.19::el9",
            "cpe:/a:redhat:satellite_maintenance:6.19::el9",
            "cpe:/a:redhat:satellite_utils:6.19::el9"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Satellite 6.19 for RHEL 9",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:3.18.0.7-1.el9sat",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "foreman",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:satellite:6"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Satellite 6",
          "packageName": "satellite-capsule:el8/foreman",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-07-01T14:16:47.277",
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:34365",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:34366",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:34367",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:34368",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-5136",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452970",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-266"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Foreman. The Usergroup model in Foreman does not properly validate role assignments against the calling user's permissions. This allows an authenticated user with usergroup management permissions to attach arbitrary roles, including administrative roles, to a user group and then add themselves as a member. Successful exploitation of this vulnerability leads to full privilege escalation, granting the attacker administrator-level access."
    }
  ],
  "lastModified": "2026-07-09T02:39:36.490",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "878EADE5-65A0-45A8-A8A9-E01B59510745",
              "versionEndExcluding": "6.16.10",
              "versionStartIncluding": "6.16"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E4F23367-8065-4400-9346-2DDAC9718C1F",
              "versionEndExcluding": "6.17.9",
              "versionStartIncluding": "6.17"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "38DDD3BD-13AA-48BA-8404-B906C2BE3395",
              "versionEndExcluding": "6.18.7",
              "versionStartIncluding": "6.18"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8698362F-3FF7-4B48-B799-722E2143DBFD",
              "versionEndExcluding": "6.19.2",
              "versionStartIncluding": "6.19"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:theforeman:foreman:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CC9CCF49-E31C-4087-B1E2-45FE2DAE1BFF",
              "versionEndExcluding": "3.18.2"
            },
            {
              "criteria": "cpe:2.3:a:theforeman:foreman:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A63B3B6B-B05A-49CC-8694-1D357171773F",
              "versionEndExcluding": "3.19.1",
              "versionStartIncluding": "3.19.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}