FKIE_CVE-2026-50130

Vulnerability from fkie_nvd - Published: 2026-07-14 22:17 - Updated: 2026-07-15 13:17
Severity
8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
Pi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. From 6.0 to 6.4.2, a user with code execution as the unprivileged pihole user can escalate to root by replacing /etc/pihole/logrotate. The replacement is laundered to root:root ownership by pihole-FTL-prestart.sh and then parsed as root by the daily pihole flush cron, executing firstaction shell as uid 0. This issue is fixed in version 6.4.3.
References
security-advisories@github.comhttps://github.com/pi-hole/pi-hole/commit/18002bf7c6bf382fe5861d01321f427019e1be89
security-advisories@github.comhttps://github.com/pi-hole/pi-hole/releases/tag/v6.4.3
security-advisories@github.comhttps://github.com/pi-hole/pi-hole/security/advisories/GHSA-h8w9-qx2v-wrww
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/pi-hole/pi-hole/security/advisories/GHSA-h8w9-qx2v-wrww
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "pi-hole",
          "vendor": "pi-hole",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 6.0.0, \u003c 6.4.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Pi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. From 6.0 to 6.4.2, a user with code execution as the unprivileged pihole user can escalate to root by replacing /etc/pihole/logrotate. The replacement is laundered to root:root ownership by pihole-FTL-prestart.sh and then parsed as root by the daily pihole flush cron, executing firstaction shell as uid 0. This issue is fixed in version 6.4.3."
    }
  ],
  "id": "CVE-2026-50130",
  "lastModified": "2026-07-15T13:17:25.240",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-50130",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-15T12:44:04.959715Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-14T22:17:13.203",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/pi-hole/pi-hole/commit/18002bf7c6bf382fe5861d01321f427019e1be89"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/pi-hole/pi-hole/releases/tag/v6.4.3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/pi-hole/pi-hole/security/advisories/GHSA-h8w9-qx2v-wrww"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/pi-hole/pi-hole/security/advisories/GHSA-h8w9-qx2v-wrww"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-282"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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