CVE-2026-15816

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-15816", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-07-15T11:41:57.564Z", "datePublished": "2026-08-07T10:33:33.612Z", "dateUpdated": "2026-11-02T10:42:37.456Z"}, "containers": {"cna": {"title": "Dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die()", "metrics": [{"other": {"content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in dracut. The die() error-handling function writes its message into a shell script under the initramfs emergency-hook directory without properly shell-quoting it. When the message contains data derived from the DHCP ROOT_PATH option, an attacker on the adjacent network who controls a rogue DHCP server can inject a command-substitution sequence that executes as root the next time dracut sources its emergency hook scripts during standard boot-failure handling."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "dracut", "defaultStatus": "affected", "versions": [{"version": "0:107-9.el10_2", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:enterprise_linux:10.2"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "dracut", "defaultStatus": "affected", "versions": [{"version": "0:105-4.el10_0.1", "lessThan": "*", "versionType": "rpm", "status": 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The die() error-handling function writes its message into a shell script under the initramfs emergency-hook directory without properly shell-quoting it. When the message contains data derived from the DHCP ROOT_PATH option, an attacker on the adjacent network who controls a rogue DHCP server can inject a command-substitution sequence that executes as root the next time dracut sources its emergency hook scripts during standard boot-failure handling."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-78", "description": "Improper Neutralization of Special Elements used in an OS Command"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-02T10:42:37.456Z"}, "x_redhatCweChain": "CWE-78: Improper Neutralization of Special Elements used in an OS Command"}}, "cveMetadata": {"cveId": "CVE-2026-15816", "state": "PUBLISHED", "dateUpdated": "2026-11-02T10:42:37.456Z", "dateReserved": "2026-07-15T11:41:57.564Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2026-08-07T10:33:33.612Z", "assignerShortName": "redhat"}, "dataVersion": "5.2"}

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