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CVE-2026-19706

Openshift/installer: openshift installer: unconditional csr approval during agent-based installation (abi) bootstrap

During ABI bootstrap, the bootstrap node's approve-csr.service approves and signs every CSR without identity validation. An attacker on the install network can retrieve the unauthenticated Ignition file (ports 22623/22624), extract a limited kubeconfig, submit a CSR for CN=system:admin, receive the signed certificate, and gain full cluster-admin access. Exploitable only during the narrow bootstrap window.

CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Assisted Installer Assisted Installer For Red Hat Openshift Container Platform Multicluster Engine and 3 more
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.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Oc-mirror Redhat
Products
Oc-mirror Assisted Installer Openshift
CVE-2024-3727

Containers/image: digest type does not guarantee valid type

A flaw was found in the github.com/containers/image library. This flaw allows attackers to trigger unexpected authenticated registry accesses on behalf of a victim user, causing resource exhaustion, local path traversal, and other attacks.

CVSS 3.1 · 8.3 High EPSS 1.3% KEV · Not listed
Vendors
Redhat
Products
Acm Advanced Cluster Security Ansible Automation Platform and 16 more
CVE-2026-101295

Oc-mirror: oc-mirror: path traversal / arbitrary file write in operator catalog image extraction

Path traversal / arbitrary file write in oc-mirror's operator catalog image extraction. When mirroring operator catalogs using either the legacy v1 path (--v1) or the OCI feature path (--use-oci-feature), oc-mirror extracts tar entries from catalog image layers without validating that file paths resolve within the intended destination directory.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Vendors
Oc-mirror Redhat
Products
Oc-mirror Assisted Installer Openshift and 1 more
CVE-2023-44487

HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack)

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

CVSS 3.1 · 7.5 High EPSS 100.0% KEV · Listed
Vendors
Akka Amazon Apache and 30 more
Products
Http Server Opensearch Data Prepper Apisix and 375 more
CVE-2021-3684

assisted-installer: Image Pull Secret leaked through log files

A vulnerability was found in OpenShift Assisted Installer. During generation of the Discovery ISO, image pull secrets were leaked as plaintext in the installation logs. An authenticated user could exploit this by re-using the image pull secret to pull container images from the registry as the associated user.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Assisted Installer Enterprise Linux Openshift Assisted Installer and 1 more
CVE-2023-39325

HTTP/2 rapid reset can cause excessive work in net/http

A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function.

CVSS 3.1 · 7.5 High EPSS 3.8% KEV · Not listed
Vendors
Fedoraproject Golang Netapp and 1 more
Products
Fedora Go Http2 and 50 more