Description
A flaw was found in Dogtag PKI, as used by FreeIPA's certificate authority component. The certificate profile import functionality does not fully validate uploaded profile content beyond the profile ID. An authenticated user with CA Administrator privileges can exploit Dogtag's ExternalProcessConstraint mechanism to execute arbitrary commands with attacker-controlled environment variables, achieving code execution as the pkiuser account.
Published: 2026-09-08
Score: 7.2 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability in Dogtag PKI, used by FreeIPA’s certificate authority, allows an authenticated user with CA Administrator privileges to import a certificate profile containing unsanitized content. The ExternalProcessConstraint component of Dogtag executes provided data without fully validating it, enabling the attacker to run arbitrary commands with environment variables controlled by the attacker, executed as the pkiuser account. This results in implementation of a command‑injection flaw (CWE‑78). The consequence is code execution that could be leveraged to expand the attacker’s foothold within the system, depending on the privileges of the pkiuser account.

Affected Systems

The affected products are Red Hat Certificate System 9 and several Red Hat Enterprise Linux releases (6, 7, 8, 9, 10). Any deployment of Dogtag PKI that includes the certprofile‑import functionality and allows CA Administrator roles to import profiles is vulnerable. Custom configurations of ExternalProcessConstraint that reference executable programs also pose an elevated risk.

Risk and Exploitability

The CVSS score is 7.2, indicating a high severity, but the EPSS score is not available and the vulnerability is not listed in CISA’s KEV catalog, which suggests the public exploitation potential may be lower. Nevertheless, the attack vector requires authentication as a CA Administrator so the attack is limited to privileged users. If a privileged user mistakenly imports a malicious profile or an attacker gains CA Administrator credentials, arbitrary commands can be run as pkiuser without further authentication. This raises the integrity and confidentiality of the system to a significant threat level.

Generated by OpenCVE AI on September 8, 2026 at 09:29 UTC.

Remediation

Vendor Workaround

Until a fixed package is available, restrict membership in CA Administrator and equivalent roles to fully trusted operators, and audit certificate profile import operations for unexpected or unrecognized profile content. Review any custom ExternalProcessConstraint executable configuration in Dogtag for unnecessary exposure.


OpenCVE Recommended Actions

  • Apply the vendor‑provided update for Red Hat Certificate System 9 and related packages as soon as it is released.
  • Restrict CA Administrator and equivalent roles to only fully trusted operators to limit the attack surface.
  • Audit certificate profile import operations and review any custom ExternalProcessConstraint executable configurations for unnecessary exposure.
  • Consider reviewing the pkiuser account’s privileges and ensuring it has no excess rights beyond what is required for PKI operations.

Generated by OpenCVE AI on September 8, 2026 at 09:29 UTC.

Tracking

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Advisories

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History

Tue, 08 Sep 2026 08:00:00 +0000

Type Values Removed Values Added
Description A flaw was found in Dogtag PKI, as used by FreeIPA's certificate authority component. The certificate profile import functionality does not fully validate uploaded profile content beyond the profile ID. An authenticated user with CA Administrator privileges can exploit Dogtag's ExternalProcessConstraint mechanism to execute arbitrary commands with attacker-controlled environment variables, achieving code execution as the pkiuser account.
Title Pki-core: dogtag/pki: certprofile-import allows code execution via unsanitized profile content (externalprocessconstraint)
First Time appeared Redhat
Redhat certificate System
Redhat enterprise Linux
Weaknesses CWE-78
CPEs cpe:/a:redhat:certificate_system:9
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat certificate System
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Redhat Certificate System Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-08T08:28:47.767Z

Reserved: 2026-08-19T13:01:16.163Z

Link: CVE-2026-76561

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-08T08:17:12.020

Modified: 2026-09-08T09:18:21.107

Link: CVE-2026-76561

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-08T09:30:07Z

Weaknesses
  • CWE-78

    Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')