CVE-2026-19843

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The Cockpit 389 Console's LDAP editor constructs an ldapsearch command by embedding an LDAP entry's distinguished name (DN) into a shell command string without proper escaping. An LDAP user with delegated privileges to create or rename directory entries could craft a malicious DN containing shell metacharacters. When a Cockpit administrator subsequently views the entry in the 389 Console, the embedded shell command executes with root privileges on the directory server host."}], "id": "CVE-2026-19843", "lastModified": "2026-11-04T23:17:25.403", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.7, "impactScore": 6.0, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-19843", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-08T14:06:40.847559Z", "version": "2.0.3"}}]}, "published": "2026-09-07T15:17:31.287", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:64768"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:64769"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:64779"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:64780"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:64782"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:64792"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:64793"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:65375"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:79217"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-19843"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515965"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank Andrew Rukin (Arenadata) for reporting this issue.", "bugzilla": {"description": "389-ds-base: 389-ds-base: Command injection via unescaped LDAP DN in Cockpit 389 Console LDAP editor", "id": "2515965", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515965"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-78", "details": ["A flaw was found in 389-ds-base. The Cockpit 389 Console's LDAP editor constructs an ldapsearch command by embedding an LDAP entry's distinguished name (DN) into a shell command string without proper escaping. An LDAP user with delegated privileges to create or rename directory entries could craft a malicious DN containing shell metacharacters. When a Cockpit administrator subsequently views the entry in the 389 Console, the embedded shell command executes with root privileges on the directory server host."], "mitigation": {"lang": "en:us", "value": "Restrict Cockpit 389 Console access to trusted administrators, and restrict delegated LDAP add/rename privileges to trusted accounts, until a fix is available. This issue only affects Red Hat Directory Server deployments that include the Cockpit console; plain RHEL 389-ds-base is not affected."}, "name": "CVE-2026-19843", "package_state": [{"cpe": "cpe:/a:redhat:directory_server:11", "fix_state": "Affected", "package_name": "389-ds-base", "product_name": "Red Hat Directory Server 11"}, {"cpe": "cpe:/a:redhat:directory_server:11", "fix_state": "Affected", "package_name": "redhat-ds:11/389-ds-base", "product_name": "Red Hat Directory Server 11"}, {"cpe": "cpe:/a:redhat:directory_server:12", "fix_state": "Affected", "package_name": "389-ds-base", "product_name": "Red Hat Directory Server 12"}, {"cpe": "cpe:/a:redhat:directory_server:12", "fix_state": "Affected", "package_name": "redhat-ds:12/389-ds-base", "product_name": "Red Hat Directory Server 12"}, {"cpe": "cpe:/a:redhat:directory_server:13", "fix_state": "Affected", "package_name": "389-ds-base", "product_name": "Red Hat Directory Server 13"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "389-ds-base", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "389-ds-base", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "389-ds-base", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "389-ds:1.4/389-ds-base", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "389-ds-base", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "389-ds-base", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-09-07T12:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-19843\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-19843"], "statement": "Important: This flaw allows an LDAP user holding delegated create/rename privileges over some subtree to achieve arbitrary command execution with root privileges on the host. The Cockpit 389 Console's LDAP editor embeds a raw LDAP entry DN into a double-quoted shell command string executed via Cockpit's privileged (superuser) channel. LDAP DN syntax does not require escaping of shell metacharacters such as $, (, and ), so a DN crafted with command substitution executes on the host when a more-privileged Cockpit operator subsequently views that entry. This compromises confidentiality, integrity, and availability of the host. Exploitation requires both a delegated LDAP write privilege and a privileged operator viewing the crafted entry; neither precondition alone is sufficient. This issue only affects Red Hat Directory Server deployments that include the Cockpit 389 Console; plain Red Hat Enterprise Linux does not ship this subpackage and is not affected.", "threat_severity": "Important"}

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