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Red Hat

Vendor security scorecard – 451 CVEs in the selected period

Period: 30d 90d 6m 1y All
Risk 1026
451
CVEs
28
Critical
182
High
0
KEV
1
PoC
127
Unpatched C/H
31.0%
Patch Rate
0.6%
Avg EPSS

Severity Breakdown

CRITICAL
28
HIGH
182
MEDIUM
224
LOW
17

Monthly CVE Trend

Top Risky CVEs

CVE Summary Severity CVSS EPSS Priority Signals
CVE-2026-72526 Cross-cluster remote code execution in Red Hat Advanced Cluster Management for Kubernetes 2 (multicloud-integrations / ArgoCD pull-model integration) lets a low-privileged hub tenant who can create Application CRs redirect propagation to arbitrary managed spoke clusters. Because the Application propagation controller trusts the attacker-supplied `ocm-managed-cluster` annotation without validation, an attacker forces ArgoCD on targeted spokes to sync attacker-controlled manifests, yielding code execution or privilege escalation there. CVSS 9.9 with scope change; no public exploit identified at time of analysis and it is not listed in CISA KEV. CRITICAL 9.9 30.0% 80
No patch
CVE-2026-70398 Cross-tenant bearer-token disclosure in Red Hat Advanced Cluster Management for Kubernetes 2 (RHACM) lets an authenticated tenant abuse the GitOpsCluster controller in the multicloud-integrations component to redirect spoke-cluster credentials into a namespace they control. Because the controller acts on the tenant's behalf across trust boundaries (a confused-deputy flaw), a low-privileged user can obtain tokens that grant access to managed spoke clusters and bypass ArgoCD AppProject scoping controls. No public exploit identified at time of analysis, and it is not listed in CISA KEV; the CVSS base score is 9.6 (Critical). CRITICAL 9.6 23.0% 71
No patch
CVE-2026-18963 Account takeover in Red Hat Build of Keycloak allows an unauthenticated attacker to abuse the reset-credentials flow in the keycloak-services component to complete a password reset for any user without ever clicking the emailed verification link, letting them directly set new credentials. Because the mandatory email-ownership check can be bypassed, the flaw yields full control of arbitrary accounts (CVSS 9.1). No public exploit identified at time of analysis, and it is not listed in CISA KEV. CRITICAL 9.1 0.4% 71
PoC
CVE-2026-18663 Heap corruption via double-free in 389-ds-base's LDAP control parsing allows an unauthenticated remote attacker to crash the directory service with a single crafted BIND request. The flaw resides in `get_ldapmessage_controls_ext()`, which frees a parsed controls array when rejecting an unknown critical Session Tracking control but fails to clear the corresponding SLAPI_REQCONTROLS pblock slot - causing operation teardown to free the same pointer a second time. Affected deployments include Red Hat Directory Server 11 through 13 and the 389-ds-base package across all supported RHEL versions (6-10). No public exploit code has been identified and the vulnerability is not listed in the CISA KEV catalog; the CVSS AC:H rating reflects that reliable heap exploitation requires specific memory layout conditions rather than a trivially repeatable one-shot crash. MEDIUM 5.9 40.0% 70
No patch
CVE-2026-66878 Secret exfiltration across Kubernetes namespace boundaries in the multicloud-operators-subscription component of Red Hat Advanced Cluster Management for Kubernetes 2 allows an authenticated namespace administrator to read Kubernetes Secrets from arbitrary namespaces outside their own authorization domain. By setting Channel.Spec.SecretRef.Namespace to a target namespace, the attacker causes the subscription controller to autonomously copy sensitive Secret contents into a namespace the attacker controls, violating the Kubernetes namespace isolation model. No public exploit code has been identified at time of analysis, but the scope-changed CVSS vector (S:C, C:H) and the sensitivity of Kubernetes Secret payloads - which frequently contain credentials, API tokens, and TLS private keys - make this a high-priority finding in any multi-tenant RHACM deployment. HIGH 7.7 21.0% 60
No patch
CVE-2026-73122 Unauthorized cross-tenant Secret and ConfigMap access in the multicloud-operators-channel component of Red Hat Advanced Cluster Management for Kubernetes 2 allows a compromised managed-cluster agent to read all Secrets and ConfigMaps within any Channel namespace on the hub cluster. The Changed scope (S:C) in the CVSS vector confirms that exploitation pivots from a managed cluster context into the hub, exposing Git and Helm repository credentials belonging to other tenants. No public exploit has been identified at time of analysis, but the network-reachable, low-privilege vector makes this a high-priority finding in any multi-tenant RHACM deployment. HIGH 7.7 21.0% 60
No patch
CVE-2026-18948 Unauthenticated remote code execution affects Feast (the open-source ML feature store), where user-defined functions stored in the registry are serialized with Python's 'dill' library and deserialized without validation. In default configurations a remote attacker can store a malicious UDF and achieve unauthenticated code execution on the feature server; an authenticated attacker can bypass authorization during deserialization to run code on the registry server, enabling cross-tenant data access and lateral movement. Rated CVSS 9.9 with a scope change; no public exploit has been identified at time of analysis, and it is not listed in CISA KEV. Feast is bundled in Red Hat OpenShift AI (RHOAI), which is the reporting vendor's affected product. CRITICAL 9.9 0.7% 50
CVE-2026-14450 Authentication bypass in the Models-as-a-Service (MaaS) API component of Red Hat OpenShift AI (RHOAI) lets any pod already running in the cluster impersonate arbitrary users by forging the X-MaaS-Username and X-MaaS-Group HTTP headers, which the service trusts without independent verification. Because the MaaS API performs no first-party authentication and defers entirely to a Kuadrant AuthPolicy gateway that can be circumvented, a low-privileged workload can mint Kubernetes ServiceAccount tokens in other tenants' namespaces, revoke API keys, and exfiltrate model-access configuration - a full cross-tenant privilege escalation. There is no public exploit identified at time of analysis, and the issue is not listed in CISA KEV, but the 9.9 CVSS reflects near-total impact. CRITICAL 9.9 0.4% 50
CVE-2026-73268 Privilege escalation and arbitrary code execution in Red Hat's multicluster engine (MCE) for Kubernetes lets a low-privileged tenant holding create or update rights on ClusterCurator resources hijack the cluster-curator-controller's service account. Because the CreateJob() function unmarshals the attacker-supplied spec.install.overrideJob raw extension without validation, the injected Job runs with the controller's elevated permissions, enabling cluster-wide secret access and full compromise. Rated CVSS 9.9 by Red Hat; no public exploit identified at time of analysis and it is not listed in CISA KEV. CRITICAL 9.9 0.4% 50
No patch
CVE-2026-72508 Privilege escalation in Red Hat Advanced Cluster Management for Kubernetes 2 lets a namespace-scoped tenant abuse the multicloud-operators-subscription controller as a confused deputy: by crafting Subscription Custom Resources, a namespace-admin causes the controller's highly privileged ServiceAccount to deploy attacker-chosen cluster-scoped resources. This breaks tenant isolation and can yield cluster-wide privilege escalation and arbitrary code execution. Rated CVSS 9.9 (scope-changing), with no public exploit identified at time of analysis and no active exploitation reported (not in CISA KEV). CRITICAL 9.9 0.3% 50
No patch
CVE-2026-67567 Privilege escalation and cluster-wide arbitrary resource deployment affects the multicloud-operators-subscription component of Red Hat Advanced Cluster Management for Kubernetes 2. A low-privileged tenant permitted to create HelmRelease custom resources can abuse the HelmRelease controller, which renders and applies Helm chart templates using its own elevated ServiceAccount, to deploy arbitrary resources anywhere in the cluster and bypass namespace/RBAC boundaries. Rated CVSS 9.9 with a scope change; no public exploit identified at time of analysis and it is not listed in CISA KEV. CRITICAL 9.9 0.3% 50
No patch
CVE-2026-59090 Arbitrary code execution in GIMP's PSD import plugin allows an attacker to run code in the context of the user who opens a maliciously crafted .psd file. An unsigned integer underflow in the plugin's block_rem length variable (CWE-191) corrupts parsing of Photoshop layer resource blocks, letting attacker-controlled data be treated as trusted structures. Reported by Red Hat and tracked upstream in GNOME's GIMP tracker; SSVC lists a proof-of-concept, though it is not in CISA KEV and EPSS exploitation probability is low (0.31%). CRITICAL 9.9 0.3% 50
No patch
CVE-2026-66792 Privilege escalation in Red Hat Advanced Cluster Management's multicloud-operators-subscription controller lets a low-privileged user on a managed cluster create a Subscription with crafted annotations that the controller processes with its own elevated Service Account, deploying attacker-chosen resources into arbitrary namespaces. The flaw (CWE-863, CVSS 9.9, scope-changed) affects Red Hat ACM 2.x and Multicluster Global Hub as reported by Red Hat. There is no public exploit identified at time of analysis and it is not listed in CISA KEV. CRITICAL 9.9 0.3% 50
No patch
CVE-2026-70496 Privilege escalation in Red Hat Advanced Cluster Management for Kubernetes 2 stems from the search-v2-operator being bound to a ClusterRole with cluster-administrator-equivalent permissions - including user impersonation, RBAC write, Certificate Signing Request approval, and ManifestWork management. An attacker who gains control of the operator's service account (a low-privileged cluster foothold) can leverage these excessive grants to take over the entire hub cluster and its managed clusters. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the CVSS 9.9 rating reflects the near-total loss of cluster control if the operator identity is abused. CRITICAL 9.9 0.3% 50
No patch
CVE-2026-73269 Privilege escalation in Red Hat's multicluster engine for Kubernetes (MCE) lets a namespace-scoped authenticated user gain cluster-wide control by abusing the cluster-curator-controller. By creating a ClusterCurator custom resource with a specific, attacker-chosen naming convention, the user tricks the controller into minting a cluster-scoped ClusterRoleBinding on their behalf, breaking the namespace isolation boundary. There is no public exploit identified at time of analysis, but the CVSS 9.9 rating reflects that a low-privileged tenant can obtain secrets access, manage cluster actions, and destroy hosted clusters or node pools. CRITICAL 9.9 0.2% 50
No patch

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