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CVE-2026-54100

Windows-machine-config-operator: windows-machine-config-operator: ssh host key not verified enables credential theft

A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. WMCO establishes SSH connections to Windows worker nodes without verifying the remote server host key. An adjacent-network attacker who can intercept or redirect WMCO's SSH session can capture WICD and kubelet bootstrap credentials transferred during node configuration, enabling compromise of Windows node identities in the cluster.

CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Openshift Openshift Container Platform Openshift For Windows Containers and 2 more
CVE-2026-88763

Skupper-router: skupper-router: unbounded recursion in amqp field parser leads to denial of service

A flaw was found in the skupper-router component of Red Hat Service Interconnect, which is used to provide secure communication between distributed services. The issue occurs when the router processes a specially crafted network message using its AMQP field parser. Due to a lack of bounds on recursion during parsing, the router can run out of stack memory and crash, leading to a denial of service for the interconnected network.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Service Interconnect
CVE-2026-88834

Busybox: busybox: httpd user existence oracle in non-default shadow-disabled builds

A flaw was found in BusyBox's httpd web server. When configured with system password authentication, a user existence oracle may exist in certain build configurations. An attacker could distinguish existing from non-existing usernames by observing authentication failure behavior. Impact is limited to username enumeration and requires non-default compile options or uncommon password file states; default BusyBox builds with shadow password support are not affected.

CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
Vendors
Busybox Redhat
Products
Busybox Hummingbird
CVE-2021-22555

Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE

A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space

CVSS 3.1 · 8.3 High EPSS 78.7% KEV · Listed
Vendors
Broadcom Linux Netapp and 1 more
Products
Fabric Operating System Linux Kernel Aff 500f and 40 more
CVE-2025-57847

Ansible-automation-platform: privilege escalation via excessive group writable /etc/passwd permissions

A container privilege escalation flaw was found in certain Ansible Automation Platform images. This issue arises from the /etc/passwd file being created with group-writable permissions during the build process. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This vulnerability allows an attacker to add a new user with any arbitrary UID, including UID 0, gaining full root privileges within the container.

CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Ansible Automation Platform Ansible Core
CVE-2024-12085

Rsync: info leak via uninitialized stack contents

A flaw was found in rsync which could be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length (s2length) to cause a comparison between a checksum and uninitialized memory and leak one byte of uninitialized stack data at a time.

CVSS 3.1 · 7.5 High EPSS 8.6% KEV · Not listed
Vendors
Almalinux Archlinux Gentoo and 5 more
Products
Almalinux Arch Linux Linux and 26 more
CVE-2026-18255

Quay: quay: global read-only superuser can view robot account tokens

A flaw was found in Quay. A user configured in GLOBAL_READONLY_SUPER_USERS is able to view robot account tokens for repositories they are not a member of, allowing an attacker with read-only superuser privileges to impersonate any robot account.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Quay Quay 3
CVE-2026-18382

Project-koku/koku-metrics-operator: koku-metrics-operator: service-account client credentials sent to user-controlled token_url

A flaw was found in koku-metrics-operator. The operator's CostManagementMetricsConfig custom resource allows a user able to edit the CR to specify an arbitrary OAuth token endpoint. When authentication.type is set to service-account, the operator sends the tenant's Red Hat SSO client_id and client_secret to this user-controlled URL, allowing the attacker to obtain the credentials.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Cost Management Metrics Operator Cost Management Cost Management Metrics Operator
CVE-2026-13201

Kubevirt: virt-handler-rhel9: kubevirt: safepath symlink following in virt-handler enables notify socket hijacking and node-level vm disruption

A flaw was found in KubeVirt's safepath package used by virt-handler. The OpenAtNoFollow function uses O_PATH|O_NOFOLLOW to obtain a file descriptor to a path leaf, but downstream operations resolve the path via /proc/self/fd/N using link-following syscalls. When the leaf is a symlink, the kernel dereferences it, defeating the intended no-follow protection. An attacker with access to a virt-launcher pod can exploit this to redirect virt-handler's IPC socket connections, including the notify socket used for VM domain lifecycle events. By hijacking this socket, the attacker can inject arbitrary domain events into virt-handler, causing it to take incorrect lifecycle actions, corrupt VM state in the Kubernetes API, or crash — resulting in sustained denial of VM management services for all virtual machines on the affected node. Additionally, the same symlink following flaw allows virt-handler to apply file ownership or permission changes to unintended host paths.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Vendors
Kubevirt Redhat
Products
Kubevirt Container Native Virtualization Openshift Virtualization
CVE-2026-18381

Project-koku/koku-metrics-operator: koku-metrics-operator: operator service-account token exfiltration via user-controlled prometheus service_address

A flaw was found in the koku-metrics-operator for Red Hat OpenShift. The operator's CostManagementMetricsConfig custom resource allows a user able to edit the CR to specify an arbitrary upload URL. The operator attaches its own Kubernetes service-account bearer token to queries sent to this user-controlled URL, allowing the attacker to obtain the token.

CVSS 3.1 · 7.6 High EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Cost Management Metrics Operator Cost Management Cost Management Metrics Operator
CVE-2026-18378

Project-koku/koku-metrics-operator: koku-metrics-operator: cluster pull-secret token exfiltration via user-controlled api_url (ssrf / confused deputy)

A flaw was found in koku-metrics-operator. The operator's CostManagementMetricsConfig custom resource allows user able to edit the CR to specify an arbitrary upload URL. When authentication.type is set to token (the default), the cluster-global Red Hat Cloud pull-secret bearer token is attached to HTTP requests sent to this user-controlled URL, allowing the attacker to obtain the token.

CVSS 3.1 · 7.6 High EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Cost Management Metrics Operator Cost Management Cost Management Metrics Operator
CVE-2026-107151

Rubygem-smart_proxy_dynflow: task update and done callbacks accept unauthenticated requests

Missing authentication has been found in remote-execution task updates in the smart_proxy_dynflow package. The progress and completion callbacks accept a report when the one-time token is missing. A network attacker or user must already know the identifier of a running job. This applies when remote execution is set to pull or pull-mqtt mode. They can send their own job output and mark the job as a success or a failure. The job is then recorded with that result.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Red Hat Satellite 6 Satellite
CVE-2013-4590

tomcat: information disclosure via XXE when running untrusted web applications

Apache Tomcat before 6.0.39, 7.x before 7.0.50, and 8.x before 8.0.0-RC10 allows attackers to obtain "Tomcat internals" information by leveraging the presence of an untrusted web application with a context.xml, web.xml, *.jspx, *.tagx, or *.tld XML document containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

CVSS 2.0 · 4.3 Medium EPSS 9.5% KEV · Not listed
Vendors
Apache Debian Oracle and 1 more
Products
Tomcat Debian Linux Solaris and 2 more
CVE-2013-4322

tomcat: incomplete fix for CVE-2012-3544

Apache Tomcat before 6.0.39, 7.x before 7.0.50, and 8.x before 8.0.0-RC10 processes chunked transfer coding without properly handling (1) a large total amount of chunked data or (2) whitespace characters in an HTTP header value within a trailer field, which allows remote attackers to cause a denial of service by streaming data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3544.

CVSS 2.0 · 4.3 Medium EPSS 9.1% KEV · Not listed
Vendors
Apache Redhat
Products
Tomcat Enterprise Linux Jboss Enterprise Web Server
CVE-2013-4286

tomcat: multiple content-length header poisoning flaws

Apache Tomcat before 6.0.39, 7.x before 7.0.47, and 8.x before 8.0.0-RC3, when an HTTP connector or AJP connector is used, does not properly handle certain inconsistent HTTP request headers, which allows remote attackers to trigger incorrect identification of a request's length and conduct request-smuggling attacks via (1) multiple Content-Length headers or (2) a Content-Length header and a "Transfer-Encoding: chunked" header. NOTE: this vulnerability exists because of an incomplete fix for CVE-2005-2090.

CVSS 2.0 · 5.8 Medium EPSS 16.2% KEV · Not listed
Vendors
Apache Redhat
Products
Tomcat Enterprise Linux Jboss Bpms and 8 more
CVE-2013-2067

tomcat: Session fixation in form authenticator

java/org/apache/catalina/authenticator/FormAuthenticator.java in the form authentication feature in Apache Tomcat 6.0.21 through 6.0.36 and 7.x before 7.0.33 does not properly handle the relationships between authentication requirements and sessions, which allows remote attackers to inject a request into a session by sending this request during completion of the login form, a variant of a session fixation attack.

CVSS 2.0 · 6.8 Medium EPSS 10.4% KEV · Not listed
Vendors
Apache Redhat
Products
Tomcat Enterprise Linux Jboss Enterprise Application Platform and 2 more
CVE-2012-5887

tomcat: three DIGEST authentication implementation issues

The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36, and 7.x before 7.0.30 does not properly check for stale nonce values in conjunction with enforcement of proper credentials, which makes it easier for remote attackers to bypass intended access restrictions by sniffing the network for valid requests.

CVSS 2.0 · 5.0 Medium EPSS 12.1% KEV · Not listed
Vendors
Apache Redhat
Products
Tomcat Enterprise Linux Jboss Data Grid and 5 more
CVE-2012-5886

tomcat: three DIGEST authentication implementation issues

The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36, and 7.x before 7.0.30 caches information about the authenticated user within the session state, which makes it easier for remote attackers to bypass authentication via vectors related to the session ID.

CVSS 2.0 · 5.0 Medium EPSS 8.8% KEV · Not listed
Vendors
Apache Redhat
Products
Tomcat Enterprise Linux Jboss Data Grid and 5 more
CVE-2012-5885

tomcat: three DIGEST authentication implementation issues

The replay-countermeasure functionality in the HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36, and 7.x before 7.0.30 tracks cnonce (aka client nonce) values instead of nonce (aka server nonce) and nc (aka nonce-count) values, which makes it easier for remote attackers to bypass intended access restrictions by sniffing the network for valid requests, a different vulnerability than CVE-2011-1184.

CVSS 2.0 · 5.0 Medium EPSS 9.0% KEV · Not listed
Vendors
Apache Redhat
Products
Tomcat Enterprise Linux Jboss Data Grid and 5 more