{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18157", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-07-28T20:03:33.510Z", "datePublished": "2026-07-31T02:38:28.243Z", "dateUpdated": "2026-07-31T02:38:28.243Z"}, "containers": {"cna": {"title": "Yggdrasil-worker-package-manager: yggdrasil-worker-package-manager: remote code execution via apt argument injection", "metrics": [{"other": {"content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"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"}, "format": "CVSS"}], "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's integrity, confidentiality, and availability."}], "affected": [{"vendor": "RedHatInsights", "product": "yggdrasil-worker-package-manager", "versions": [{"status": "affected", "version": "0", "lessThan": "0.1.4", "versionType": "semver"}, {"status": "affected", "version": "0.2.0", "lessThan": "0.2.4", "versionType": "semver"}], "packageName": "yggdrasil-worker-package-manager", "collectionURL": "https://github.com/RedHatInsights/yggdrasil-worker-package-manager", "defaultStatus": "unaffected"}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "yggdrasil-worker-package-manager", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:10"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-18157", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2465250", "name": "RHBZ#2465250", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://github.com/RedHatInsights/yggdrasil-worker-package-manager/commit/959745bb5917c17f0316af199aace6c71baa5ad7"}, {"url": "https://github.com/RedHatInsights/yggdrasil-worker-package-manager/releases/tag/0.1.4"}, {"url": "https://github.com/RedHatInsights/yggdrasil-worker-package-manager/releases/tag/0.2.4"}], "datePublic": "2026-07-30T20:11:17.276Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-88", "description": "Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')", "timeline": [{"lang": "en", "time": "2026-05-04T14:54:08.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-07-30T20:11:17.276Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "Red Hat would like to thank AISLE Research for reporting this issue."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-07-31T02:38:28.243Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

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{"acknowledgement": "Red Hat would like to thank AISLE Research for reporting this issue.", "bugzilla": {"description": "yggdrasil-worker-package-manager: yggdrasil-worker-package-manager: Remote Code Execution via APT Argument Injection", "id": "2465250", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2465250"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-88", "details": ["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."], "name": "CVE-2026-18157", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "yggdrasil-worker-package-manager", "product_name": "Red Hat Enterprise Linux 10"}], "public_date": "2026-07-30T20:11:17Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-18157\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-18157\nhttps://github.com/RedHatInsights/yggdrasil-worker-package-manager/commit/959745bb5917c17f0316af199aace6c71baa5ad7"], "statement": "This flaw does not affect any Red Hat products as it only affects FreeBSD systems.", "threat_severity": "Important"}

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