Medium 5.3Published Apr 8, 2026

CVE-2025-14243Mirror-registry: openshift mirror registry: user enumeration via authentication error messages

Updated under an hour ago (Oct 26, 2026, 11:20 PM ET)

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It affects Red Hat mirror registry for Red Hat OpenShift and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Red Hat mirror registry for Red Hat OpenShift

Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-209
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Analyzed
Record last updated: Apr 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat mirror registry for Red Hat OpenShift redhat:mirror_registry	1	CNA record
redhat mirror_registry_for_red_hat_openshift redhat:mirror_registry_for_red_hat_openshift	all versions; 2.0	NVD

References

References

https://access.redhat.com/security/cve/CVE-2025-14243	vdb-entry, x-refsource-redhat, vendor-advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2419829	issue-tracking, x-refsource-redhat, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.