CVE-2026-42965
MEDIUM
MEDIUM
Priority: 0.03
BB Relevance:
63/100
Published: 2026-05-29
Modified: 2026-11-04
First seen: 2026-11-04
Status: active
Attack Surface
Network
Low Complexity
No Interaction
Conf. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
None
A:
None
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.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| redhat | openshift_container_platform | 4.0 |
| redhat | openshift_router | - |
References & Advisories (9)
vendor-advisory
x_refsource_REDHAT
vendor-advisory
x_refsource_REDHAT
vendor-advisory
x_refsource_REDHAT
vendor-advisory
x_refsource_REDHAT
vendor-advisory
x_refsource_REDHAT
vendor-advisory
x_refsource_REDHAT
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT