CVE-2026-44945

CVE-2026-44945 is a privilege escalation in Rancher’s impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated user with the default global role can obtain full admin access to the Rancher control plane and downstream clusters. Affected: Rancher 2.11.0–2.11.15, 2.12.0–2.12.11...

CVE-2026-44945 Cross-Cluster Impersonation Confused-Deputy Privilege Escalation

A privilege escalation vulnerability exists in Rancher's impersonation middleware pkg/auth/requests/impersonate.go. An authenticated Rancher user with the default user global role can gain full administrative access to the Rancher control plane and transitively to all downstream clusters it...

CVE-2026-55998

The endpoint /v3/import/tokenclusterId.yaml retrieves the cluster object before validating the token. When a valid cluster ID references a cluster that has private registry secrets configured, a nil pointer dereference in pkg/systemtemplate/privateregistry.go causes the request to return HTTP 502...

EUVD-2026-53258

The endpoint /v3/import/tokenclusterId.yaml retrieves the cluster object before validating the token. When a valid cluster ID references a cluster that has private registry secrets configured, a nil pointer dereference in pkg/systemtemplate/privateregistry.go causes the request to return HTTP 502...

PT-2026-68090

Name of the Vulnerable Software and Affected Versions Rancher versions 2.11.0 through 2.11.15 Rancher versions 2.12.0 through 2.12.11 Rancher versions 2.13.0 through 2.13.7 Rancher versions 2.14.0 through 2.14.1 Description A privilege escalation issue exists in the impersonation middleware locat...

SUSE CVE-2026-28759

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13, 11.4.x = 11.4.3 fail to validate that a remote cluster has access to a channel before processing membership removal requests during shared channel membership sync, which allows a malicious remote cluster to remove any user from any channel,...

Critical: Red Hat Security Advisory: multicluster engine for Kubernetes v2.17.1 security update

Red Hat multicluster engine for Kubernetes v2.17 general availability release images, which provide security fixes, bug fixes, and updated container images. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System CVSS base scor...

Critical: Red Hat Security Advisory: multicluster engine for Kubernetes v2.6.13 security update

Red Hat multicluster engine for Kubernetes v2.6 general availability release images, which provide security fixes, bug fixes, and updated container images. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System CVSS base score...

CVE-2026-64415

In the Linux kernel, the following vulnerability has been resolved: mm/swap: add condresched in swapreclaimfullclusters to prevent softlockup We hit a real softlockup in an internal stress test environment. The workload was LTP memory/swap stress on a large arm64 machine, with 320 CPUs, about 1TB...

CVE-2026-64415

In the Linux kernel, the following vulnerability has been resolved: mm/swap: add condresched in swapreclaimfullclusters to prevent softlockup We hit a real softlockup in an internal stress test environment. The workload was LTP memory/swap stress on a large arm64 machine, with 320 CPUs, about 1TB...

UBUNTU-CVE-2026-64415

In the Linux kernel, the following vulnerability has been resolved: mm/swap: add condresched in swapreclaimfullclusters to prevent softlockup We hit a real softlockup in an internal stress test environment. The workload was LTP memory/swap stress on a large arm64 machine, with 320 CPUs, about 1TB...

EUVD-2026-48959

In the Linux kernel, the following vulnerability has been resolved: mm/swap: add condresched in swapreclaimfullclusters to prevent softlockup We hit a real softlockup in an internal stress test environment. The workload was LTP memory/swap stress on a large arm64 machine, with 320 CPUs, about 1TB...

CVE-2026-64415

CVE-2026-64415 is a softlockup vulnerability in the Linux kernel's mm/swap component, specifically in swap_reclaim_full_clusters(). Under heavy memory and swap stress (observed during LTP stress on a 320-CPU arm64 machine with ~1 TB RAM and an 8.6 GB swap device), the function can run for an exte...

CVE-2026-64415

In the Linux kernel, the following vulnerability has been resolved: mm/swap: add condresched in swapreclaimfullclusters to prevent softlockup We hit a real softlockup in an internal stress test environment. The workload was LTP memory/swap stress on a large arm64 machine, with 320 CPUs, about 1TB...

CVE-2026-64415 mm/swap: add cond_resched() in swap_reclaim_full_clusters to prevent softlockup

In the Linux kernel, the following vulnerability has been resolved: mm/swap: add condresched in swapreclaimfullclusters to prevent softlockup We hit a real softlockup in an internal stress test environment. The workload was LTP memory/swap stress on a large arm64 machine, with 320 CPUs, about 1TB...

CVE-2026-64415 mm/swap: add cond_resched() in swap_reclaim_full_clusters to prevent softlockup

In the Linux kernel, the following vulnerability has been resolved: mm/swap: add condresched in swapreclaimfullclusters to prevent softlockup We hit a real softlockup in an internal stress test environment. The workload was LTP memory/swap stress on a large arm64 machine, with 320 CPUs, about 1TB...

PT-2026-64636

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A softlockup can occur in the Linux kernel during large full cluster reclaim operations when the system is under heavy load and the swap device contains many full clusters. This issue wa...

etcd: Watch API authorization bypass via open-ended range requests

Impact What kind of vulnerability is it? Who is impacted? A user granted READ permission on a single, exact key can use the Watch gRPC API with clientv3.WithFromKey an open-ended, "from this key to the end of the keyspace" watch to receive watch events for every key lexicographically greater than...

CVE-2026-17107

A flaw was found in the cluster-proxy service-proxy component used in Red Hat Advanced Cluster Management for Kubernetes RHACM and multicluster-engine MCE. The service-proxy appends impersonation group headers to proxied requests without first removing caller-supplied values, and the spoke...

CVE-2026-17107

A flaw was found in the cluster-proxy service-proxy component used in Red Hat Advanced Cluster Management for Kubernetes RHACM and multicluster-engine MCE. The service-proxy appends impersonation group headers to proxied requests without first removing caller-supplied values, and the spoke...