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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None
Affected products
References
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:54583
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:54602
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:54770
- VENDOR_ADVISORYhttps://access.redhat.com/security/cve/CVE-2026-42965
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=2483184
Updated 28m ago · 8 sources