{"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":"2026-07-31T15:58:53.619Z"},"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"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-31T15:54:47.332670Z","id":"CVE-2026-18157","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-31T15:58:53.619Z"}}]}}