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RHSA-2026:64769

Vulnerability from csaf_redhat - Published: 2026-09-08 01:02 - Updated: 2026-09-08 08:21
Summary
Red Hat Security Advisory: 389-ds-base security update
Severity
Important
Notes
Topic: An update for 389-ds-base is now available for Red Hat Directory Server 13.0 EUS for RHEL 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: 389 Directory Server is an LDAP version 3 (LDAPv3) compliant server. The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration. Additional Changes: For detailed information on changes in this release, see the Red Hat Directory Server 13.0 EUS for RHEL 10 Release Notes linked from the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-19843

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.

8.4 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected products
Product Identifier Version Remediation
Unresolved product id: BaseOS-10.0.Z.E2S-DirSrv-13.0-E2S:389-ds-base-0:3.0.6-4.el10dsrv.src —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-10.0.Z.E2S-DirSrv-13.0-E2S:cockpit-389-ds-0:3.0.6-4.el10dsrv.noarch —
Vendor Fix fix
Workaround
Threats
Impact Important
References
Acknowledgments
Arenadata Andrew Rukin
To clipboard 

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      "acknowledgments": [
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          "organization": "Arenadata"
        }
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      "cve": "CVE-2026-19843",
      "cwe": {
        "id": "CWE-78",
        "name": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)"
      },
      "discovery_date": "2026-08-06T00:00:00+00:00",
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          "text": "2515965"
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      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in 389-ds-base. The Cockpit 389 Console\u0027s LDAP editor constructs an ldapsearch command by embedding an LDAP entry\u0027s 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.",
          "title": "Vulnerability description"
        },
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          "category": "summary",
          "text": "389-ds-base: 389-ds-base: Command injection via unescaped LDAP DN in Cockpit 389 Console LDAP editor",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "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\u0027s LDAP editor embeds a raw LDAP entry DN into a double-quoted shell command string executed via Cockpit\u0027s 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.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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        {
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19843"
        }
      ],
      "release_date": "2026-09-07T12:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-08T01:02:11+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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          ],
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            "category": "none"
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        },
        {
          "category": "workaround",
          "details": "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.",
          "product_ids": [
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        {
          "cvss_v3": {
            "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"
          },
          "products": [
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            "BaseOS-10.0.Z.E2S-DirSrv-13.0-E2S:cockpit-389-ds-0:3.0.6-4.el10dsrv.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "389-ds-base: 389-ds-base: Command injection via unescaped LDAP DN in Cockpit 389 Console LDAP editor"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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