PT-2026-43787

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ext4 file system where a double decrement of the dirty clusters counter occurs during file system shutdown. This happens in the error path between the ext4 mb mark...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: validate BOOT sectorsperclusters When the NTFS BOOT sectorsperclusters field is greater than 0x80, it represents a shift value. Ensure that the shift value is not too large before using it the maximum cluster size for...

A Hybrid Cluster-Based Classification Model for Anomaly Detection in Unbalanced IoT Networks

Detecting anomalies in Internet of Things IoT networks is a critical security challenge, often hampered by highly imbalanced and diverse network traffic datasets. Standard classifiers struggle to perform well across all traffic types. This paper proposes a hybrid detection model to address this...

Incorrect Authorization

Overview github.com/mattermost/mattermost/server/channels/app is a private-cloud Slack alternative Affected versions of this package are vulnerable to Incorrect Authorization via the membership sync process. An attacker can remove users from any channel, including private channels, by sending...

CVE-2026-28759

Mattermost multiple releases (11.4.x <= 11.4.3, 11.5.x <= 11.5.1, 10.11.x

Mattermost 安全漏洞

Mattermost is an open-source collaboration platform developed by the American company Mattermost. Vulnerabilities exist in Mattermost versions 11.5.1 and earlier of the 11.5.x series, as well as versions 10.11.13 and earlier of the 10.11.x series, and 11.4.3 and earlier of the 11.4.x series. Thes...

Improper Authorization

Fleet is vulnerable to Improper Authorization. The vulnerability is due to incomplete application of ServiceAccount impersonation in certain Helm deployer code paths, which allows an attacker with git push access to read secrets from arbitrary namespaces on downstream clusters...

CVE-2026-41050

Fleet's Helm deployer did not fully apply ServiceAccount impersonation in two code paths, allowing a tenant with git push access to a Fleet-monitored repository to read secrets from any namespace on every downstream cluster targeted by their GitRepo...

Important: Red Hat Security Advisory: Assisted Installer RHEL 8 components for Multicluster Engine for Kubernetes 2.6.11

Assisted installer RHEL 8 components for the multicluster engine for Kubernetes 2.6.11 General Availability release, with updates to container images. Assisted Installer RHEL 8 integrates components for the general multicluster engine for Kubernetes 2.6.11 release that simplify the process of...

Topical Shifts in the Dark Web: A Longitudinal Analysis of Content from the Cybercrime Ecosystem

The dark web hosts a dynamic ecosystem of cybercrime forums and marketplaces that adapt to law enforcement pressure, technological change, and economic incentives. Prior research has extracted cyber threat intelligence from these platforms using static snapshots, with limited attention to how...

Important: Red Hat Security Advisory: Assisted Installer RHEL 8 components for Multicluster Engine for Kubernetes 2.8.6

Assisted installer RHEL 8 components for the multicluster engine for Kubernetes 2.8.6 General Availability release, with updates to container images. Assisted Installer RHEL 8 integrates components for the general multicluster engine for Kubernetes 2.8.6 release that simplify the process of...

CVE-2026-41050

Fleet's Helm deployer did not fully apply ServiceAccount impersonation in two code paths, allowing a tenant with git push access to a Fleet-monitored repository to read secrets from any namespace on every downstream cluster targeted by their GitRepo...

BIT-MONGODB-2026-4148 ExpressionContext use-after-free in classic engine $lookup and $graphLookup aggregation operators

A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who issues a specially crafted $lookup or $graphLookup aggregation pipeline...

CVE-2026-41050 Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering

Fleet's Helm deployer did not fully apply ServiceAccount impersonation in two code paths, allowing a tenant with git push access to a Fleet-monitored repository to read secrets from any namespace on every downstream cluster targeted by their GitRepo...

CVE-2026-41050 Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering

Fleet's Helm deployer did not fully apply ServiceAccount impersonation in two code paths, allowing a tenant with git push access to a Fleet-monitored repository to read secrets from any namespace on every downstream cluster targeted by their GitRepo...

Fleet 安全漏洞

Fleet is an open-source device management platform developed by Fleet Device Management. It supports various operating systems and devices, and helps IT and security teams with device management, vulnerability reporting, MDM operations, etc. There is a security vulnerability in Fleet, which stems...

Important: Red Hat Security Advisory: multicluster engine for Kubernetes v2.11.0 General Availability

The multicluster engine for Kubernetes 2.11 General Availability release images, which add new features and enhancements, bug fixes, and updated container images. The multicluster engine for Kubernetes v2.11 images The multicluster engine for Kubernetes provides the foundational components that a...

Critical: Red Hat Security Advisory: Red Hat Developer Hub 1.9.4 release.

Red Hat Developer Hub 1.9.4 has been released. Red Hat Developer Hub RHDH is Red Hat's enterprise-grade, self-managed, customizable developer portal based on Backstage.io. RHDH is supported on OpenShift and other major Kubernetes clusters AKS, EKS, GKE. The core features of RHDH include a single...

CVE-2026-31431: Copy Fail vulnerability enables Linux root privilege escalation across cloud environments

In this article 1. Vulnerability details 2. Mitigation and protection guidance 3. Microsoft Defender XDR detections 4. References 5. Learn more Microsoft Defender is investigating a high-severity local privilege escalation vulnerability CVE-2026-31431 affecting multiple major Linux distributions...

Important: Red Hat Security Advisory: Assisted Installer RHEL 9 components for Multicluster Engine for Kubernetes 2.11.1

Assisted installer RHEL 9 components for the multicluster engine for Kubernetes 2.11.1 General Availability release, with updates to container images. Assisted Installer RHEL 9 integrates components for the general multicluster engine for Kubernetes 2.11.1 release that simplify the process of...