VulncastBriefing archive

Weekly Brief - 2026-09-28

· 2803 vulnerabilities · 11 min listen

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CVE-2026-93952

critical · CVSS 10 · VMware VeloCloud Orchestrator

VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successful exploitation may compromise the confidentiality, integrity, and availability of the orchestrator and data managed by the orchestrator. Hosted, including Dedicated, versions of VCO were impacted and have already been patched.

  • Broken Access Control
  • software defined networking

CVE-2026-94127

critical · CVSS 9.8 · F5 BIG-IP APM

When a BIG-IP APM access policy and an OAuth profile are configured on a virtual server, specific malicious traffic can lead to remote code execution (RCE). This vulnerability is only present when BIG-IP APM is configured as an OAuth Authorization Server. Deployments using APM strictly as an OAuth Client / Resource Server (without OAuth authorization server profiles configured) are not affected by this vulnerability. Impact: This vulnerability allows an unauthenticated attacker to perform remote code execution. The BIG-IP system in Appliance mode is also vulnerable. This is a data plane issue; there is no control plane exposure. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

  • Remote Code Execution
  • network appliance

CVE-2026-6721

critical · CVSS 9.8 · IBM Concert

IBM Concert 1.0.0 through 3.0.0 allows an unauthenticated remote attacker can supply specially crafted input that is incorporated into OS commands, resulting in arbitrary command execution on the underlying system. Successful exploitation allows remote code execution with the privileges of the affected application.

  • Remote Code Execution
  • Command Injection
  • application platform

CVE-2026-76183

critical · CVSS 9.8 · Apache Tomcat

Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121. The following versions were EOS at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.

  • Authentication Bypass
  • web server
  • websocket

CVE-2026-84719

critical · CVSS 9.9 · Red Hat Ansible Automation Platform

A flaw was found in the Ansible Automation Platform automation-controller. When a WorkflowJobTemplate is copied, the deep-copy permission sanitizer validates only the inventory, unified_job_template, and credentials of each cloned node and fails to check the instance_groups (and execution_environment and labels) that were preserved from the original. A user with organization workflow-admin permission but no role on the referenced instance groups can copy a workflow, become its administrator, and launch jobs pinned to instance groups they are not authorized to use — including the control-plane instance group — bypassing the InstanceGroup use_role boundary and causing attacker-influenced automation to run in the control-plane execution context.

  • Broken Access Control
  • automation controller

CVE-2026-86708

critical · CVSS 10 · Zoho ManageEngine Applications Manager

ZohoCorp ManageEngine Applications Manager versions 182200 and below were vulnerable to exposure of a Google Cloud service-account private key in the Applications Manager installer, which could allow an unauthenticated attacker to impersonate the service account and access or modify associated cloud resources.

  • Information Disclosure
  • Impersonation
  • monitoring software

CVE-2026-93577

critical · CVSS 9.9 · GitLab CE/EE

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to execute arbitrary code on the GitLab server due to an integer overflow issue when compiling a specially crafted regular expression in a CI/CD configuration.

  • Remote Code Execution
  • Integer Overflow
  • web application

CVE-2026-92609

critical · CVSS 9.8 · Apache Qpid Broker-J

Session fixation in HTTP management authentication allows remote attackers to gain unauthorized access to an authenticated management session via reuse of a session identifier retained across successful authentication. This issue affects Apache Qpid Broker-J: through 10.1.0. Users are recommended to upgrade to version 10.1.1, which fixes the issue.

  • Session Fixation
  • java
  • message broker

CVE-2026-93643

critical · CVSS 9.8 · Zimbra

When OnlyOffice/Document Editing is available, an unauthenticated remote attacker with access to an existing supported public Briefcase document can abuse unsigned save fields to perform path-traversal writes and execute commands as zimbra.

  • Path Traversal
  • Remote Code Execution
  • web application
  • email server

CVE-2026-100706

critical · CVSS 9.9 · Kyverno

kyverno before 1.19.1 fails to properly validate URL-encoded path segments in Policy apiCall urlPath, allowing namespace tenants to bypass the per-namespace clamp and create objects in other namespaces as the admission-controller ServiceAccount. Attackers can exploit this by using percent-encoded directory traversal sequences to create MutatingWebhookConfiguration objects cluster-wide or PolicyException objects in the kyverno namespace, enabling privilege escalation to cluster admin.

  • Privilege Escalation
  • Directory Traversal
  • kubernetes
  • go