CVE-2026-96577

Oc-mirror__release-4.21: embedded local cache registry listens on all interfaces without authentication, with delete enabled

Published Oct 1, 2026 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
A flaw was found in oc-mirror. During mirroring operations, the embedded local cache registry binds to all network interfaces without authentication or encryption instead of restricting access to the local system. An unauthenticated attacker on an adjacent network can connect to the exposed service to push tampered container images, delete cached images, or access mirrored content.

Remediation

Vendor Workaround

Red Hat has not identified any known mitigations for this issue. Customers are advised to apply the available security update when released.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:5
Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:4.19::el9
References
Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:4 cpe:/a:redhat:openshift:4.21::el9
cpe:/a:redhat:openshift:4.22::el9
References
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Oc-mirror
Oc-mirror oc-mirror
Vendors & Products Oc-mirror
Oc-mirror oc-mirror
Type Values Removed Values Added
Description No description is available for this CVE. A flaw was found in oc-mirror. During mirroring operations, the embedded local cache registry binds to all network interfaces without authentication or encryption instead of restricting access to the local system. An unauthenticated attacker on an adjacent network can connect to the exposed service to push tampered container images, delete cached images, or access mirrored content.
Title oc-mirror__release-4.21: Embedded local cache registry listens on all interfaces without authentication, with delete enabled Oc-mirror__release-4.21: embedded local cache registry listens on all interfaces without authentication, with delete enabled
First Time appeared Redhat
Redhat assisted Installer
Redhat openshift
CPEs cpe:/a:redhat:assisted_installer:2
cpe:/a:redhat:openshift:4
Vendors & Products Redhat
Redhat assisted Installer
Redhat openshift
References
Type Values Removed Values Added
Description No description is available for this CVE.
Title oc-mirror__release-4.21: Embedded local cache registry listens on all interfaces without authentication, with delete enabled
Weaknesses CWE-306
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N'}

threat_severity

Important

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 11, 2026, 6:44 PM
Reserved
Sep 23, 2026, 1:30 PM
Status
Awaiting Analysis
Published
Oct 1, 2026, 10:17 AM
Modified
Nov 11, 2026, 7:17 PM
Severity
Important
Public date
Sep 23, 2026, 2:05 PM