Red Hat Linux Security Advisories & CVEs
4891 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited backstops use a safe source cadence
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Security advisories for your Red Hat release
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 Security Data API
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
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.
High [CVE-2026-21728] Denial of Service via large queries
Denial of Service via large queries. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected package(s): multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779925273, multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779212259, multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1780167118, multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1778867753, multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779579439. Resolved in Red Hat advisory RHSA-2026:21769 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Ceph Storage 5; Red Hat Ceph Storage 6; Red Hat Ceph Storage 9; Red Hat OpenShift distributed tracing 3; and 7 more.
High [CVE-2026-41316] Arbitrary code execution via deserialization bypass
Arbitrary code execution via deserialization bypass. Red Hat rates this important (CVSS 8.1). Weakness: CWE-502. Affected package(s): ruby, ruby4.0, ruby:3.3, ruby:4.0. Resolved in Red Hat advisory RHSA-2026:20614 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; and 3 more.
High [CVE-2026-31663] hold dev ref until after transport_finish NF_HOOK
hold dev ref until after transport_finish NF_HOOK. Red Hat rates this important (CVSS 7). Weakness: CWE-826. 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 Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.
High [CVE-2026-31636] fix RESPONSE authenticator parser OOB read
fix RESPONSE authenticator parser OOB read. Red Hat rates this moderate (CVSS 7.1). Weakness: CWE-805. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:30129 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1.
High [CVE-2026-31641] Fix RxGK token loading to check bounds
Fix RxGK token loading to check bounds. Red Hat rates this important (CVSS 7.3). Weakness: CWE-190. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:27288 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat Enterprise Linux 10.
High [CVE-2026-31617] validate minimum block_len in ncm_unwrap_ntb()
validate minimum block_len in ncm_unwrap_ntb(). Red Hat rates this important (CVSS 7). Weakness: CWE-191. 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 10.
High [CVE-2026-31613] fix OOB reads parsing symlink error response
fix OOB reads parsing symlink error response. Red Hat rates this moderate (CVSS 7.1). Weakness: CWE-125. Affected package(s): kernel-rt, kernel. Resolved in Red Hat advisory RHSA-2026:25120 — 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-2026-31669] fix slab-use-after-free in __inet_lookup_established
fix slab-use-after-free in __inet_lookup_established. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-763. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:27288 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8.
High [CVE-2026-31607] validate number_of_packets in usbip_pack_ret_submit()
validate number_of_packets in usbip_pack_ret_submit(). Red Hat rates this important (CVSS 7.3). Weakness: CWE-805. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:19569 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 9.6 Extended Update Support.
High [CVE-2026-41246] Arbitrary Code Execution and Denial of Service via Lua Code Injection
Arbitrary Code Execution and Denial of Service via Lua Code Injection. Red Hat rates this important (CVSS 8.1). 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 Enterprise Linux.
High [CVE-2026-40886] Denial of Service via malformed workflow pod annotation
Denial of Service via malformed workflow pod annotation. Red Hat rates this important (CVSS 7.7). Weakness: CWE-1285. 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-2026-6919] Use after free in DevTools
Use after free in DevTools. Red Hat rates this important (CVSS 8.8). Weakness: CWE-825. 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.