Red Hat Linux Security Advisories & Vulnerabilities
16037 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited sources checked less often
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Pick your distribution release to see every advisory issued for it and its severity mix. Fixes ship as errata, so 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
Medium [CVE-2026-42371] Denial of Service via numeric truncation with oversized URIs
Denial of Service via numeric truncation with oversized URIs. Red Hat rates this moderate (CVSS 4.7). Weakness: CWE-190. Affected package(s): uriparser-main. Resolved in Red Hat advisory RHSA-2026:12430 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-10843] CCO Mint-mode CredentialsRequest manifests grant account-wide IAM access beyond cluster scope on AWS
CCO Mint-mode CredentialsRequest manifests grant account-wide IAM access beyond cluster scope on AWS. Red Hat rates this important (CVSS 7.2). Weakness: CWE-250. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected products named by the advisory: Red Hat OpenShift Container Platform 4; Red Hat OpenShift Container Platform 5.
High [CVE-2026-6951] Remote Code Execution due to incomplete fix bypass
Remote Code Execution due to incomplete fix bypass. Red Hat rates this important (CVSS 8.8). Weakness: CWE-88. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat Enterprise Linux 8.
High [CVE-2026-31684] validate nested VLAN headers
validate nested VLAN headers. Red Hat rates this moderate (CVSS 7.1). Weakness: CWE-1285. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:21745 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
High [CVE-2026-10840] tekton-scheduler-rolebinding grants system:authenticated write access to Kueue and cert-manager resources
tekton-scheduler-rolebinding grants system:authenticated write access to Kueue and cert-manager resources. Red Hat rates this important (CVSS 7.1). Weakness: CWE-732. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected products named by the advisory: Red Hat OpenShift Builds 1.7.4; OpenShift Pipelines; Red Hat OpenShift Builds 1.8.1; Red Hat OpenShift Builds 1.7.1; and 3 more.
High [CVE-2026-31685] reject invalid MAC header for all packets
reject invalid MAC header for all packets. Red Hat rates this moderate (CVSS 7.1). Weakness: CWE-1287. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:26462 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 1.
Medium [CVE-2026-31677] af_alg - limit RX SG extraction by receive buffer budget
af_alg - limit RX SG extraction by receive buffer budget. Red Hat rates this low (CVSS 5.5). Weakness: CWE-770. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:19074 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
High [CVE-2026-41415] Denial of service via malformed Content-ID URI in SIP multipart message
Denial of service via malformed Content-ID URI in SIP multipart message. Red Hat rates this important (CVSS 7.5). Weakness: CWE-125. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-42039] Denial of Service via unbounded recursion in toFormData with deeply nested request data
Denial of Service via unbounded recursion in toFormData with deeply nested request data. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected package(s): openshift-service-mesh/kiali-rhel9:1778164042, rhoai/odh-mod-arch-model-registry-rhel9:1780467147, openshift4/ose-agent-installer-ui-rhel9:1778539338, satellite/iop-advisor-frontend-rhel9:1781181673, openshift-service-mesh/kiali-rhel8:1778191378, rhacm2/console-rhel9:1780600823. Resolved in Red Hat advisory RHSA-2026:14937 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Management for Kubernetes 2.15; Red Hat Advanced Cluster Security for Kubernetes 4.10; Red Hat Advanced Cluster Security for Kubernetes 4.9; and 34 more.
High [CVE-2026-42041] Authentication bypass due to prototype pollution of HTTP error handling
Authentication bypass due to prototype pollution of HTTP error handling. Red Hat rates this important (CVSS 8.2). Weakness: CWE-915. Affected package(s): openshift-service-mesh/kiali-rhel9:1778164042, rhoai/odh-mod-arch-model-registry-rhel9:1780467147, openshift4/ose-agent-installer-ui-rhel9:1778539338, satellite/iop-advisor-frontend-rhel9:1781181673, openshift-service-mesh/kiali-rhel8:1778191378, rhacm2/console-rhel9:1780600823. Resolved in Red Hat advisory RHSA-2026:14937 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Management for Kubernetes 2.15; Red Hat Advanced Cluster Security for Kubernetes 4.10; Red Hat Advanced Cluster Security for Kubernetes 4.9; and 34 more.
High [CVE-2026-42043] NO_PROXY bypass via crafted URL
NO_PROXY bypass via crafted URL. Red Hat rates this important (CVSS 7.2). Weakness: CWE-918. Affected package(s): openshift-service-mesh/kiali-rhel9:1778164042, rhoai/odh-mod-arch-model-registry-rhel9:1780467147, openshift4/ose-agent-installer-ui-rhel9:1778539338, satellite/iop-advisor-frontend-rhel9:1781181673, openshift-service-mesh/kiali-rhel8:1778191378, rhacm2/console-rhel9:1780600823. Resolved in Red Hat advisory RHSA-2026:14937 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Management for Kubernetes 2.15; Red Hat Advanced Cluster Security for Kubernetes 4.10; Red Hat Advanced Cluster Security for Kubernetes 4.9; and 32 more.
High [CVE-2026-42044] Invisible JSON Response Tampering via Prototype Pollution Gadget
Invisible JSON Response Tampering via Prototype Pollution Gadget. Red Hat rates this important (CVSS 7.4). Weakness: CWE-915. Affected package(s): openshift-service-mesh/kiali-rhel9:1778164042, network-observability/network-observability-console-plugin-rhel9:1780556069, satellite/iop-advisor-frontend-rhel9:1781181673, rhacm2/console-rhel9:1780600823, devspaces/code-rhel9:1779814592, multicluster-engine/console-mce-rhel9:1778383863. Resolved in Red Hat advisory RHSA-2026:26068 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Management for Kubernetes 2.15; Red Hat Advanced Cluster Security for Kubernetes 4.10; Red Hat Advanced Cluster Security for Kubernetes 4.9; and 37 more.
High [CVE-2026-42035] Arbitrary HTTP header injection via prototype pollution
Arbitrary HTTP header injection via prototype pollution. Red Hat rates this moderate (CVSS 7.4). Weakness: CWE-915. Affected package(s): openshift-service-mesh/kiali-rhel9:1778164042, cluster-observability-operator/monitoring-console-plugin-pf5-rhel9:1781116667, satellite/iop-advisor-frontend-rhel9:1781181673, rhacm2/console-rhel9:1780600823, cluster-observability-operator/distributed-tracing-console-plugin-pf6-rhel9:1781116387, quay/quay-rhel9:1779922205. Resolved in Red Hat advisory RHSA-2026:14937 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9.
High [CVE-2026-42033] HTTP Transport Hijacking via Prototype Pollution
HTTP Transport Hijacking via Prototype Pollution. Red Hat rates this important (CVSS 7.4). Weakness: CWE-915. Affected package(s): openshift-service-mesh/kiali-rhel9:1778164042, rhoai/odh-mod-arch-model-registry-rhel9:1780467147, openshift4/ose-agent-installer-ui-rhel9:1778539338, satellite/iop-advisor-frontend-rhel9:1781181673, openshift-service-mesh/kiali-rhel8:1778191378, rhacm2/console-rhel9:1780600823. Resolved in Red Hat advisory RHSA-2026:14937 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Management for Kubernetes 2.15; Red Hat Advanced Cluster Security for Kubernetes 4.10; Red Hat Advanced Cluster Security for Kubernetes 4.9; and 35 more.
High [CVE-2026-41680] Denial of Service via specific input sequence
Denial of Service via specific input sequence. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-835. Affected package(s): satellite/iop-advisor-frontend-rhel9:1781181673, satellite/iop-vulnerability-frontend-rhel9:1781032495. Resolved in Red Hat advisory RHSA-2026:26214 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-41140] Path traversal vulnerability allows arbitrary file write via malicious package extraction
Path traversal vulnerability allows arbitrary file write via malicious package extraction. Red Hat rates this important (CVSS 8.7). Weakness: CWE-22. Affected package(s): ansible-automation-platform. Resolved in Red Hat advisory RHSA-2026:24866 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Ansible Automation Platform 2.6; Red Hat OpenShift Container Platform 4.
High [CVE-2026-41411] Command injection allows arbitrary code execution via malicious tag files
Command injection allows arbitrary code execution via malicious tag files. Red Hat rates this moderate (CVSS 7.3). Weakness: CWE-78. Affected package(s): insights-proxy/insights-proxy-container-rhel9:1782890503, vim, discovery/discovery-ui-rhel9:1782756541. Resolved in Red Hat advisory RHSA-2026:28049 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
High [CVE-2026-40897] Arbitrary code execution via expression parser
Arbitrary code execution via expression parser. Red Hat rates this important (CVSS 8.8). Weakness: CWE-917. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-41044] Arbitrary code execution via improper input validation in admin console
Arbitrary code execution via improper input validation in admin console. Red Hat rates this important (CVSS 7.2). Weakness: CWE-94. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat JBoss Enterprise Application Platform 7.
High [CVE-2026-40466] Arbitrary code execution via improper input validation in HTTP Discovery transport
Arbitrary code execution via improper input validation in HTTP Discovery transport. Red Hat rates this important (CVSS 8.8). Weakness: CWE-94. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released. Affected product named by the advisory: Red Hat JBoss Enterprise Application Platform 7.
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