FKIE_CVE-2026-54727

Vulnerability from fkie_nvd - Published: 2026-07-29 17:16 - Updated: 2026-07-30 20:07
Severity
8.2 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Summary
proot-distro is a utility for managing proot containers. Prior to version 5.1.6, proot-distro restore accepted hardlink entries whose linkname referenced another installed container and did not verify that the hardlink source container matched the destination container being restored, allowing a crafted restore archive to copy files between otherwise isolated containers. This issue is fixed in version 5.1.6.
References
security-advisories@github.comhttps://github.com/termux/proot-distro/commit/98aff324b7d8500ff75a8ca9ac087ee636be4716
security-advisories@github.comhttps://github.com/termux/proot-distro/releases/tag/v5.1.6
security-advisories@github.comhttps://github.com/termux/proot-distro/security/advisories/GHSA-7h3g-4w2f-fj2f
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/termux/proot-distro/security/advisories/GHSA-7h3g-4w2f-fj2f
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "proot-distro",
          "vendor": "termux",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.1.6"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "proot-distro is a utility for managing proot containers. Prior to version 5.1.6, proot-distro restore accepted hardlink entries whose linkname referenced another installed container and did not verify that the hardlink source container matched the destination container being restored, allowing a crafted restore archive to copy files between otherwise isolated containers. This issue is fixed in version 5.1.6."
    }
  ],
  "id": "CVE-2026-54727",
  "lastModified": "2026-07-30T20:07:01.330",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.8,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-54727",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-29T18:07:28.241478Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-29T17:16:53.250",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/termux/proot-distro/commit/98aff324b7d8500ff75a8ca9ac087ee636be4716"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/termux/proot-distro/releases/tag/v5.1.6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/termux/proot-distro/security/advisories/GHSA-7h3g-4w2f-fj2f"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/termux/proot-distro/security/advisories/GHSA-7h3g-4w2f-fj2f"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-668"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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