Description
A flaw was found in the OpenShift Router. A user with EndpointSlice write access can exploit this vulnerability by creating a Service backed by an FQDN (Fully Qualified Domain Name) EndpointSlice that resolves to a cloud metadata endpoint. This allows the router to proxy requests to the cloud metadata endpoint, leading to the disclosure of instance credentials and other sensitive metadata. This bypasses previous security measures for validating IP addresses.
Affected products
redhat: openshift container platform; redhat: openshift router
References10
- access.redhat.com/security/cve/CVE-2026-42965 Vendor Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2483184 Issue TrackingVendor Advisory
- access.redhat.com/security/cve/CVE-2026-42965 Vendor Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2483184 Issue TrackingVendor Advisory
- access.redhat.com/errata/RHSA-2026:54583
- access.redhat.com/errata/RHSA-2026:54602
- access.redhat.com/errata/RHSA-2026:54770
- access.redhat.com/errata/RHSA-2026:57408
- access.redhat.com/errata/RHSA-2026:65852
- access.redhat.com/errata/RHSA-2026:70587
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 0% percentile: 34 · as of 15 November 2026
- CWE
- CWE-918
Could this be exploited in your environment?
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