Red Hat Linux Security Advisories & CVEs
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Pick your distribution release to see every advisory issued for it and its severity mix. Fixes ship as errata — keep the system patched. This is the release's advisory history, not a per-package scan.
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Red Hat Enterprise Linux errata (RHSA) via the official Red Hat Security Data API — CVE severity, CVSS and affected packages. A credential-free official source.
Latest Red Hat advisories
Critical [CVE-2026-70496] operator ClusterRole is cluster-admin equivalent via impersonate, RBAC write, CSR approve, and ManifestWork
operator ClusterRole is cluster-admin equivalent via impersonate, RBAC write, CSR approve, and ManifestWork. Red Hat rates this important (CVSS 9.9). Weakness: CWE-250. Affected product named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.
Critical [CVE-2026-71470] Search CR imageOverride/arguments/envVar flow unsanitized into pods running impersonating SA
A flaw was found in the search-v2-operator. This vulnerability allows a privileged user, specifically a Custom Resource (CR) editor, to manipulate Search CR fields such as imageOverride, arguments, and environment variables without proper validation. By exploiting this, an attacker can mount arbitrary secrets into a search container's environment or replace the container image with an attacker-controlled one. This leads to privilege escalation and can result in a full cluster compromise due to the ServiceAccount's extensive impersonation permissions. This is an Important vulnerability in Red Hat Advanced Cluster Management for Kubernetes. Exploitation requires an already-privileged CR editor, which is why this does not meet the bar for Critical under the unauthenticated-RCE standard. Red Hat severity: Important — CVSS 9.1 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H). Weakness: CWE-913. Red Hat does not currently list a fixing RHSA for this CVE. Affected product named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.
Critical [CVE-2026-66794] unauthenticated SSRF to arbitrary managed-cluster services via public Route
A flaw was found in the `cluster-proxy-addon` component of Multicluster Engine for Kubernetes. This vulnerability allows an unauthenticated attacker, who can access the user-facing route, to bypass authentication and authorization checks. By manipulating URL path segments, the attacker can proxy requests to arbitrary services across any managed cluster. This enables unauthorized access to internal services that would otherwise be protected, potentially leading to information disclosure or further compromise of the cluster environment. Red Hat severity: Important — CVSS 9.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N). Weakness: CWE-918. Affected Red Hat products: Multicluster Engine for Kubernetes. Red Hat does not currently list a fixing RHSA for this CVE.
Critical [CVE-2026-76044] Arbitrary code execution due to a race condition in USB
Arbitrary code execution due to a race condition in USB. Red Hat rates this important (CVSS 9). Weakness: CWE-368.
Critical [CVE-2026-66780] flat broker trust model grants every spoke full CRUD on all endpoints, secrets, and endpointslices in broker namespace
flat broker trust model grants every spoke full CRUD on all endpoints, secrets, and endpointslices in broker namespace. Red Hat rates this important (CVSS 9.9). Weakness: CWE-284. Affected product named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.
Critical [CVE-2026-18963] Unauthenticated account takeover via reset-credentials flow bypass
Unauthenticated account takeover via reset-credentials flow bypass. Red Hat rates this critical (CVSS 9.1). Weakness: CWE-640. Red Hat lists fixing advisory RHSA-2026:56524 with package rhbk/keycloak-rhel9:26.6-12, rhbk-keycloak-rhel9/rhbk-keycloak-rhel9, keycloak-services, rhbk-openshift-rhel9/rhbk-openshift-rhel9. Affected products named by the advisory: Red Hat build of Keycloak 26.4; Red Hat build of Keycloak 26.6; Red Hat JBoss Enterprise Application Platform Expansion Pack.
Critical [CVE-2026-12564] Automation-controller: automation-controller: kubernetes service account token exfiltration via hashicorp vault credential ssrf
A flaw was found in the AAP Controller's HashiCorp Vault credential plugin. An authenticated attacker with credential-creation privileges can exfiltrate the service account token, gaining Kubernetes API access to the control plane namespaces with full pod CRUD and secret read permissions, including database credentials and the Django SECRET_KEY. The vulnerability is particularly impactful in AAP Cloud (managed service) environments where the Kubernetes control plane is managed by Red Hat and tenant isolation is a security boundary. On-premise deployments are also affected, though the impact is lower since the administrator already has access to the infrastructure. The vulnerable code path exists in all AAP versions that ship the hashivault credential plugin with kubernetes_role authentication support. Red Hat severity: Critical — CVSS 9.6 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N). Weakness: CWE-918. Affected Red Hat products: Red Hat Ansible Automation Platform 2. Red Hat does not currently list a fixing RHSA for this CVE.
Critical [CVE-2026-66795] CSR auto-approver does not validate certificate Subject, signerName, or requester identity
CSR auto-approver does not validate certificate Subject, signerName, or requester identity. Red Hat rates this important (CVSS 9.1). Weakness: CWE-295. Affected product named by the advisory: Multicluster Engine for Kubernetes.
Critical [CVE-2026-71472] Shell-command and SQL injection in postgresql-start.sh via CR-supplied WORK_MEM
Shell-command and SQL injection in postgresql-start.sh via CR-supplied WORK_MEM. Red Hat rates this important (CVSS 9.1). Weakness: CWE-78. Affected product named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.
Critical [CVE-2026-66792] IsClusterAdmin trusts user-settable annotations on managed clusters
IsClusterAdmin() trusts user-settable annotations on managed clusters. Red Hat rates this important (CVSS 9.9). Weakness: CWE-863. Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2; Red Hat OpenShift Container Platform 4.
Critical [CVE-2026-71471] Hub Search CR Collector.ImageOverride propagated to every spoke as arbitrary container image
Hub Search CR Collector. ImageOverride propagated to every spoke as arbitrary container image. Red Hat rates this important (CVSS 9). Weakness: CWE-829. Affected product named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.
Critical [CVE-2026-72508] hub and spoke ServiceAccounts bound to wildcard RBAC (*/*/*)
hub and spoke ServiceAccounts bound to wildcard RBAC (*/*/*). Red Hat rates this important (CVSS 9.9). Weakness: CWE-250. Affected product named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.
Critical [CVE-2026-70398] GitOpsCluster.spec.argoServer.argoNamespace writes spoke bearer tokens to attacker-chosen namespace
GitOpsCluster.spec.argoServer.argoNamespace writes spoke bearer tokens to attacker-chosen namespace. Red Hat rates this important (CVSS 9.6). Weakness: CWE-441. Affected product named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.
Critical [CVE-2026-72526] pull-model propagation allows hub tenant to target arbitrary spoke cluster via unvalidated ocm-managed-cluster annotation
pull-model propagation allows hub tenant to target arbitrary spoke cluster via unvalidated ocm-managed-cluster annotation. Red Hat rates this important (CVSS 9.9). Weakness: CWE-441. Affected product named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.
Critical [CVE-2026-73213] Server-Side Request Forgery via incorrect IPv6 comparison
Server-Side Request Forgery via incorrect IPv6 comparison. Red Hat rates this critical (CVSS 9.9). Weakness: CWE-918.
Critical [CVE-2026-10579] auth bypass in Picketlink SAML unsolicited-response
auth bypass in Picketlink SAML unsolicited-response. Red Hat rates this critical (CVSS 9.8). Red Hat lists fixing advisory RHSA-2026:53806 with package eap7-ironjacamar-0:1.5.26-2.Final_redhat_00001.1.el7eap, eap7-undertow-0:2.2.40-2.SP3_redhat_00001.1.el7eap, eap7-wildfly-0:7.4.25-2.GA_redhat_00001.1.el7eap, eap7-netty-0:4.1.135-1.Final_redhat_00001.1.el7eap. Affected product named by the advisory: Red Hat JBoss Enterprise Application Platform 7.
Critical [CVE-2026-73268] spec.install.overrideJob allows arbitrary Job spec injection
spec.install.overrideJob allows arbitrary Job spec injection. Red Hat rates this important (CVSS 9.9). Weakness: CWE-94. Affected product named by the advisory: Multicluster Engine for Kubernetes.
Critical [CVE-2026-73269] tenant-controllable trigger creates ClusterRoleBinding granting cluster-wide secrets access to namespace-local SA
tenant-controllable trigger creates ClusterRoleBinding granting cluster-wide secrets access to namespace-local SA. Red Hat rates this important (CVSS 9.9). Weakness: CWE-269. Affected product named by the advisory: Multicluster Engine for Kubernetes.
Critical [CVE-2026-18948] Unsafe dill deserialization of registry-stored UDFs — RCE on feature server and registry server
Unsafe dill deserialization of registry-stored UDFs — RCE on feature server and registry server. Red Hat rates this critical (CVSS 9.9). Red Hat lists fixing advisory RHSA-2026:53262 with package rhoai/odh-feature-server-rhel9:1786110051, rhoai/odh-feature-server-rhel9:1786110033, rhoai/odh-feature-server-rhel9:1786107278. Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.4.
Critical [CVE-2026-14450] Privilege escalation via forged HTTP headers due to missing authentication
Privilege escalation via forged HTTP headers due to missing authentication. Red Hat rates this important (CVSS 9.9). Weakness: CWE-290. Red Hat lists fixing advisory RHSA-2026:53262 with package rhoai/odh-maas-api-rhel9:1785850409. Affected products named by the advisory: Red Hat OpenShift AI (RHOAI); Red Hat OpenShift AI 3.4.