FKIE_CVE-2026-18157

Vulnerability from fkie_nvd - Published: 2026-07-31 03:16 - Updated: 2026-08-03 16:39
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A flaw was found in yggdrasil-worker-package-manager. A local attacker with existing access to the system could exploit an argument injection vulnerability in the APT backend. This allows specially crafted package names, which begin with a hyphen, to be misinterpreted as command options by apt-get. Successful exploitation could lead to remote code execution (RCE) with root privileges, enabling the attacker to fully compromise the system's integrity, confidentiality, and availability.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2026-18157
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2465250
secalert@redhat.comhttps://github.com/RedHatInsights/yggdrasil-worker-package-manager/commit/959745bb5917c17f0316af199aace6c71baa5ad7
secalert@redhat.comhttps://github.com/RedHatInsights/yggdrasil-worker-package-manager/releases/tag/0.1.4
secalert@redhat.comhttps://github.com/RedHatInsights/yggdrasil-worker-package-manager/releases/tag/0.2.4
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://github.com/RedHatInsights/yggdrasil-worker-package-manager",
          "defaultStatus": "unaffected",
          "packageName": "yggdrasil-worker-package-manager",
          "product": "yggdrasil-worker-package-manager",
          "vendor": "RedHatInsights",
          "versions": [
            {
              "lessThan": "0.1.4",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "0.2.4",
              "status": "affected",
              "version": "0.2.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10"
          ],
          "defaultStatus": "unaffected",
          "packageName": "yggdrasil-worker-package-manager",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in yggdrasil-worker-package-manager. A local attacker with existing access to the system could exploit an argument injection vulnerability in the APT backend. This allows specially crafted package names, which begin with a hyphen, to be misinterpreted as command options by apt-get. Successful exploitation could lead to remote code execution (RCE) with root privileges, enabling the attacker to fully compromise the system\u0027s integrity, confidentiality, and availability."
    }
  ],
  "id": "CVE-2026-18157",
  "lastModified": "2026-08-03T16:39:02.593",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-18157",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-31T15:54:47.332670Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-31T03:16:25.223",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2026-18157"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2465250"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://github.com/RedHatInsights/yggdrasil-worker-package-manager/commit/959745bb5917c17f0316af199aace6c71baa5ad7"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://github.com/RedHatInsights/yggdrasil-worker-package-manager/releases/tag/0.1.4"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://github.com/RedHatInsights/yggdrasil-worker-package-manager/releases/tag/0.2.4"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-88"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}



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