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CVE-2026-15927

Estado: Pendiente de análisisMedia (6.8)—

A flaw was found in Red Hat Quay's repository-level mirror configuration feature. The POST and PUT handlers in endpoints/api/mirror.py accept an external_reference parameter without SSRF validation, unlike the organization-level mirror handlers which apply validate_external_registry_url(). A repository administrator can supply a crafted hostname that causes the Quay mirror worker to make requests via Skopeo to internal network services, cloud metadata endpoints, or other resources not intended to be reachable from the Quay application.

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).

Tecnologías afectadas (2)

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

Redhat — QuayAISkopeo — SkopeoAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-15927",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-15927",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-21T13:12:11.259508Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secalert@redhat.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.8,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 2.3
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "cpes": [
            "cpe:/a:redhat:quay:3.10::el8"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Quay 3.10",
          "versions": [
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              "status": "unaffected",
              "version": "1786395065",
              "lessThan": "*",
              "versionType": "rpm"
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          ],
          "packageName": "quay/quay-rhel8",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
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        },
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          ],
          "vendor": "Red Hat",
          "product": "Red Hat Quay 3.12",
          "versions": [
            {
              "status": "unaffected",
              "version": "1786170635",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "quay/quay-rhel8",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "defaultStatus": "affected"
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          "cpes": [
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          ],
          "vendor": "Red Hat",
          "product": "Red Hat Quay 3.14",
          "versions": [
            {
              "status": "unaffected",
              "version": "1788593843",
              "lessThan": "*",
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            }
          ],
          "packageName": "quay/quay-rhel8",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "defaultStatus": "affected"
        },
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          "cpes": [
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          ],
          "vendor": "Red Hat",
          "product": "Red Hat Quay 3.15",
          "versions": [
            {
              "status": "unaffected",
              "version": "1788191755",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "quay/quay-rhel8",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "defaultStatus": "affected"
        },
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          ],
          "vendor": "Red Hat",
          "product": "Red Hat Quay 3.16",
          "versions": [
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              "version": "1789563753",
              "lessThan": "*",
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          ],
          "packageName": "quay/quay-rhel9",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "defaultStatus": "affected"
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          "vendor": "Red Hat",
          "product": "Red Hat Quay 3.17",
          "versions": [
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              "version": "1786181981",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "quay/quay-rhel9",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "defaultStatus": "affected"
        },
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          "cpes": [
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          ],
          "vendor": "Red Hat",
          "product": "Red Hat Quay 3.9",
          "versions": [
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              "version": "1785950004",
              "lessThan": "*",
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            }
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          "packageName": "quay/quay-rhel8",
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:mirror_registry:2"
          ],
          "vendor": "Red Hat",
          "product": "mirror registry for Red Hat OpenShift 2",
          "packageName": "openshift/mirror-registry-rhel8",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        }
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    }
  ],
  "published": "2026-07-21T06:16:28.603",
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:50931",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:52968",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:53520",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:54395",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:63307",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:69255",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:70267",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-15927",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2501256",
      "source": "secalert@redhat.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Red Hat Quay's repository-level mirror configuration\nfeature. The POST and PUT handlers in endpoints/api/mirror.py accept an\nexternal_reference parameter without SSRF validation, unlike the\norganization-level mirror handlers which apply validate_external_registry_url().\nA repository administrator can supply a crafted hostname that causes the Quay\nmirror worker to make requests via Skopeo to internal network services, cloud\nmetadata endpoints, or other resources not intended to be reachable from the\nQuay application."
    }
  ],
  "lastModified": "2026-09-22T18:17:10.970",
  "sourceIdentifier": "secalert@redhat.com"
}