CVE-2026-96577
Oc-mirror__release-4.21: embedded local cache registry listens on all interfaces without authentication, with delete enabled
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.
Fixes and workarounds
Workaround
Red Hat has not identified any known mitigations for this issue. Customers are advised to apply the available security update when released.
Source: CNA: redhatAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Red Hat OpenShift Container Platform 4.18 Red Hat openshift4/oc-mirror-plugin-rhel9
https://catalog.redhat.com/software/containers/ |
≥ 1790828598; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat OpenShift Container Platform 4.19 Red Hat openshift4/oc-mirror-plugin-rhel9
https://catalog.redhat.com/software/containers/ |
≥ 1790778095; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat OpenShift Container Platform 4.20 Red Hat openshift4/oc-mirror-plugin-rhel9
https://catalog.redhat.com/software/containers/ |
≥ 1790782357; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat OpenShift Container Platform 4.21 Red Hat openshift4/oc-mirror-plugin-rhel9
https://catalog.redhat.com/software/containers/ |
≥ 1790777129; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat OpenShift Container Platform 4.22 Red Hat openshift4/oc-mirror-plugin-rhel9
https://catalog.redhat.com/software/containers/ |
≥ 1790775357; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Assisted Installer for Red Hat OpenShift Container Platform 2 Red Hat assisted/agent-preinstall-image-builder-rhel9
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unknown |
CNA: redhat |
| Red Hat OpenShift Container Platform 5 Red Hat openshift5/oc-mirror-plugin-rhel9
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.1 high |
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N | CNA: redhat |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://access.redhat.com/errata/RHSA-2026:74380CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:74383CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:74429CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:74434CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:79039CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-96577CNA: redhat · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2523077CNA: redhat · issue-tracking, x_refsource_REDHAT
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