CVE-2026-42965
mediumpriority · track · 26EPSS 0.004 · 34 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.7
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
- redhat openshift container platform= 4.0nvdUScpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (11)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2026-42965cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2483184cnnvd
- https://access.redhat.com/security/cve/CVE-2026-42965enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2483184enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:54583nvd
- https://access.redhat.com/errata/RHSA-2026:54602nvd
- https://access.redhat.com/errata/RHSA-2026:54770nvd
- https://access.redhat.com/errata/RHSA-2026:57408nvd
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