Description
A flaw was found in FreeIPA. An improper authorization check allows an authenticated host to retrieve and revoke digital certificates assigned to other users or services. This issue occurs because FreeIPA verifies ownership solely by matching the host name to the certificate's subject Common Name (CN), without confirming actual ownership in the directory service. Consequently, an enrolled host can disrupt services by revoking certificates belonging to other entities.
Published: 2026-10-22
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized revocation of digital certificates
Action: Apply Patch
AI Analysis

Impact

The flaw in FreeIPA allows an authenticated host to retrieve and revoke certificates of other users because the system only checks that the host name matches the certificate’s subject Common Name, without validating ownership against the directory service. As a result, an enrolled host can effectively remove certificates belonging to other entities, disrupting secure communications and potentially denying service to legitimate users. This represents a moderate‑level privilege escalation that can undermine the integrity of authentication mechanisms.

Affected Systems

The vulnerability affects Red Hat Enterprise Linux releases 10, 6, 7, 8, 9 where FreeIPA is deployed. No specific product versions are identified; any installation of FreeIPA on those OSes is potentially impacted.

Risk and Exploitability

The CVSS score is 5.4, indicating moderate severity. EPSS is not available and the CVE is not listed in the CISA KEV catalog, suggesting limited known exploitation. The attack requires an authenticated host within the same FreeIPA domain and relies on local privileges; therefore the threat vector is internal to the trusted network. Although the score is moderate, the potential to de‑authenticate services by revoking certificates makes it worth addressing promptly.

Generated by OpenCVE AI on October 23, 2026 at 03:08 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Red Hat security update that patches FreeIPA to a version where the certificate ownership check is verified against the directory service.
  • Configure FreeIPA to enforce strict role‑based access control for certificate revocation operations, ensuring only authorized principals may revoke certificates.
  • Enable logging and audit of all certificate revocation events and review logs for any unauthorized activity.

Generated by OpenCVE AI on October 23, 2026 at 03:08 UTC.

Tracking

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Advisories

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History

Thu, 05 Nov 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs 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
cpe:/a:redhat:enterprise_linux:10
cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els

Mon, 26 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 23 Oct 2026 07:15:00 +0000

Type Values Removed Values Added
First Time appeared Red Hat
Red Hat enterprise Linux
Vendors & Products Red Hat
Red Hat enterprise Linux

Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Description A flaw was found in FreeIPA. An improper authorization check allows an authenticated host to retrieve and revoke digital certificates assigned to other users or services. This issue occurs because FreeIPA verifies ownership solely by matching the host name to the certificate's subject Common Name (CN), without confirming actual ownership in the directory service. Consequently, an enrolled host can disrupt services by revoking certificates belonging to other entities.
Title Ipa: freeipa: freeipa uses subject cn as proof of certificate ownership
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-863
CPEs 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 enterprise Linux
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'}

threat_severity

Moderate


Subscriptions

Red Hat Enterprise Linux
Redhat Enterprise Linux Rhel Els
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-11-05T16:30:31.029Z

Reserved: 2026-10-22T07:40:12.346Z

Link: CVE-2026-115221

cve-icon Vulnrichment

Updated: 2026-10-26T16:41:06.559Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-22T22:18:06.327

Modified: 2026-11-05T17:17:40.583

Link: CVE-2026-115221

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-22T12:00:00Z

Links: CVE-2026-115221 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T07:00:14Z

Weaknesses