CVE-2026-27877

Estado: ModificadaAlta (7.5)—

When using public dashboards and direct data-sources, all direct data-sources' passwords are exposed despite not being used in dashboards.

No passwords of proxied data-sources are exposed. We encourage all direct data-sources to be converted to proxied data-sources as far as possible to improve your deployments' security.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.40%
Percentil entre todas las CVEs puntuadas: 32
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1552.001 Credentials In Filescredential access90 %

AV:N/PR:N/UI:N sin privilegios previos indica explotación de aplicación expuesta. Las contraseñas de data-sources directas se filtran públicamente, afectando credenciales almacenadas (T1552.001).

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

Vulnerability Scanning User Training Restrict File and Directory Permissions Privileged Account Management Password Policies Network Segmentation

Tecnologías afectadas (1)

Grafana — Grafana

CWE

NVD-CWE-noinfo
CWE-312
CWE-201

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-27877",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-27877",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-27T14:56:26.128138Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@grafana.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Secondary",
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@grafana.com",
      "affectedData": [
        {
          "vendor": "Grafana",
          "product": "Grafana",
          "versions": [
            {
              "status": "affected",
              "version": "9.3.0",
              "lessThan": "11.6.14",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "12.0.0",
              "lessThan": "12.1.10",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "12.2.0",
              "lessThan": "12.2.8",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "12.3.0",
              "lessThan": "12.3.6",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "12.4.0",
              "lessThan": "12.4.2",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "affectedData": [
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10.1",
            "cpe:/o:redhat:enterprise_linux:10.2"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 10",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:10.2.6-24.el10_1",
              "lessThan": "*",
              "versionType": "rpm"
            },
            {
              "status": "unaffected",
              "version": "0:10.2.6-26.el10_2",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "grafana",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux_eus:10.0"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:10.2.6-23.el10_0",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "grafana",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:9"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 9",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:10.2.6-20.el9_7",
              "lessThan": "*",
              "versionType": "rpm"
            },
            {
              "status": "unaffected",
              "version": "0:10.2.6-22.el9_8",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "grafana",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:rhel_eus:9.6"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
          "versions": [
            {
              "status": "unaffected",
              "version": "0:10.2.6-20.el9_6",
              "lessThan": "*",
              "versionType": "rpm"
            }
          ],
          "packageName": "grafana",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "affected"
        },
        {
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 8",
          "packageName": "grafana",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-03-27T15:16:51.050",
  "references": [
    {
      "url": "https://grafana.com/security/security-advisories/cve-2026-27877",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@grafana.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:10223",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:10226",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:11416",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:11417",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:19134",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:19352",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-27877",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452293",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://grafana.com/security/security-advisories/cve-2026-27877",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    },
    {
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27877.json",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-312"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "description": [
        {
          "lang": "en",
          "value": "CWE-201"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "When using public dashboards and direct data-sources, all direct data-sources' passwords are exposed despite not being used in dashboards.\n\nNo passwords of proxied data-sources are exposed. We encourage all direct data-sources to be converted to proxied data-sources as far as possible to improve your deployments' security."
    }
  ],
  "lastModified": "2026-07-15T02:19:11.787",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0714C0DD-B9B9-4400-AE9C-C2C60BF57743",
              "versionEndExcluding": "9.3.0"
            },
            {
              "criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5845D5E9-8631-4F0B-B100-24DCDE4C8C1F",
              "versionEndExcluding": "12.0.0",
              "versionStartIncluding": "11.6.14"
            },
            {
              "criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AE3F977F-FF94-4A15-918C-54241EC49560",
              "versionEndExcluding": "12.2.0",
              "versionStartIncluding": "12.1.10"
            },
            {
              "criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CB499815-0B44-4BF9-AB14-F7272EF0173F",
              "versionEndExcluding": "12.3.0",
              "versionStartIncluding": "12.2.8"
            },
            {
              "criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7F2B145A-24E0-4C0F-BF82-FFD2B1301B51",
              "versionEndExcluding": "12.4.0",
              "versionStartIncluding": "12.3.6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@grafana.com"
}