CVE-2025-14243

Mirror-registry: openshift mirror registry: user enumeration via authentication error messages

Published Apr 8, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
A flaw was found in the OpenShift Mirror Registry. This vulnerability allows an unauthenticated, remote attacker to enumerate valid usernames and email addresses via different error messages during authentication failures and account creation.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Redhat mirror Registry For Red Hat Openshift
CPEs cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:2.0:*:*:*:*:*:*:*
Vendors & Products Redhat mirror Registry For Red Hat Openshift
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A flaw was found in the OpenShift Mirror Registry. This vulnerability allows an unauthenticated, remote attacker to enumerate valid usernames and email addresses via different error messages during authentication failures and account creation.
Title Mirror-registry: openshift mirror registry: user enumeration via authentication error messages
First Time appeared Redhat
Redhat mirror Registry
Weaknesses CWE-209
CPEs cpe:/a:redhat:mirror_registry:1
cpe:/a:redhat:mirror_registry:2
Vendors & Products Redhat
Redhat mirror Registry
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Apr 8, 2026, 9:46 PM
Reserved
Dec 8, 2025, 4:22 AM
Status
Analyzed
Published
Apr 8, 2026, 5:20 PM
Modified
Jul 25, 2026, 10:10 AM
Severity
Moderate
Public date
Apr 8, 2026, 4:31 PM