CVE-2026-71576

A flaw was found in multicluster-global-hub. The manager component improperly validates the source identity of incoming CloudEvents on Kafka status topics. A remote attacker, after compromising a managed hub and obtaining its Kafka client certificate, can manipulate the self-asserted source...

CVE-2026-71577

CVE-2026-71577 affects multicluster-global-hub. During a ManagedClusterMigration, the system grants all managed hubs read access to a shared communication topic, enabling a compromised hub to intercept bootstrap kubeconfigs containing API server tokens intended for other hubs. These tokens have a...

CVE-2026-71577 Multicluster-global-hub: multicluster-global-hub: spec-topic read acl leaks bootstrap kubeconfigs to all managed hubs during migration

A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server token...

CVE-2026-71577

A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server token...

CVE-2026-71576

A flaw was found in multicluster-global-hub. The manager component improperly validates the source identity of incoming CloudEvents on Kafka status topics. A remote attacker, after compromising a managed hub and obtaining its Kafka client certificate, can manipulate the self-asserted source...

CVE-2026-71576

CVE-2026-71576 affects multicluster-global-hub: the manager component improperly validates the source identity of CloudEvents on Kafka status topics. A remote attacker who compromises a managed hub and obtains its Kafka client certificate can manipulate the self-asserted source identity, enabling...

CVE-2026-71576 Multicluster-global-hub: multicluster-global-hub: manager trusts self-asserted evt.source() for leaf-hub identity in all status handlers

A flaw was found in multicluster-global-hub. The manager component improperly validates the source identity of incoming CloudEvents on Kafka status topics. A remote attacker, after compromising a managed hub and obtaining its Kafka client certificate, can manipulate the self-asserted source...

CVE-2026-71576

A flaw was found in multicluster-global-hub. The manager component improperly validates the source identity of incoming CloudEvents on Kafka status topics. A remote attacker, after compromising a managed hub and obtaining its Kafka client certificate, can manipulate the self-asserted source...

CVE-2026-66801

A flaw was found in multicluster-global-hub. An attacker who compromises a managed hub can leverage its legitimate Kafka client certificate to publish a CloudEvent a specification for describing event data in a common way message to the shared gh-spec topic. This message can spoof its source as...

Critical: Red Hat Security Advisory: Multicluster Global Hub 1.8.1 security update

Multicluster Global Hub v1.8.1 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, which gives a...

DEBIAN-CVE-2026-68146

In the Linux kernel, the following vulnerability has been resolved: ftrace: Add global mutex to serialize traceparser access In ftrace, the traceparser structure is allocated and initialized when a trace file is opened, and is subsequently used across write and release handlers to parse user inpu...

UBUNTU-CVE-2026-68146

In the Linux kernel, the following vulnerability has been resolved: ftrace: Add global mutex to serialize traceparser access In ftrace, the traceparser structure is allocated and initialized when a trace file is opened, and is subsequently used across write and release handlers to parse user inpu...

CVE-2026-68294 net: qrtr: restrict socket creation to the initial network namespace

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: restrict socket creation to the initial network namespace QRTR keeps its entire port and node state in module-global variables that are not partitioned per network namespace: qrtrlocalnid is a single global node id...

CVE-2026-68146

The CVE-2026-68146 entry documents a Linux kernel ftrace vulnerability where the trace_parser state (idx, cont, buffer) could race when multiple threads share an open trace file descriptor and perform concurrent writes or releases. The fix introduces a global mutex (parser_lock) to serialize all ...

CVE-2026-68146 ftrace: Add global mutex to serialize trace_parser access

In the Linux kernel, the following vulnerability has been resolved: ftrace: Add global mutex to serialize traceparser access In ftrace, the traceparser structure is allocated and initialized when a trace file is opened, and is subsequently used across write and release handlers to parse user inpu...

EUVD-2026-55530

In the Linux kernel, the following vulnerability has been resolved: ftrace: Add global mutex to serialize traceparser access In ftrace, the traceparser structure is allocated and initialized when a trace file is opened, and is subsequently used across write and release handlers to parse user inpu...

CVE-2026-68138

The CVE-2026-68138 issue concerns a race in the Linux kernel networking scheduler (net/sched) where qdisc_rtab_list and a non-atomic refcnt are mutated without proper locking. The historical RTNL mutex was supposed to serialize rate-table lookups, inserts, and frees, but CLS_FLOWER/TCF_PROTO_OPS_...

EUVD-2026-55485

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: invoke pmgenpdremove before freeing genpd Call pmgenpdremove to unregister from global list prior to releasing acpgenpd memory, and clear the pointer after free. cherry picked from commit...

CVE-2026-68104

The CVE-2026-68104 issue affects the Linux kernel’s drm/amdgpu component. The root cause is improper memory handling where pm_genpd_remove() is not called before freeing acp_genpd memory, potentially enabling memory corruption. The vulnerability is described as a local impact with possible denial...

PT-2026-69873

Name of the Vulnerable Software and Affected Versions multicluster-global-hub affected versions not specified Description A flaw occurs during a ManagedClusterMigration where the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised...