Red Hat Linux Security Advisories & CVEs
3067 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-2026-31532] fix ro->uniq use-after-free in raw_rcv()
fix ro->uniq use-after-free in raw_rcv(). Red Hat rates this moderate (CVSS 7.1). Weakness: CWE-366. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:25095 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
High [CVE-2026-41326] Arbitrary file write inside guest image via CopyFile policy
Arbitrary file write inside guest image via CopyFile policy. Red Hat rates this important (CVSS 8.8). Weakness: CWE-1220. Affected package(s): rhcos. Resolved in Red Hat advisory RHSA-2026:25200 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift Container Platform 4.19; Confidential Compute Attestation.
High [CVE-2026-41651] race condition vulnerability leads to arbitrary package installation as root
race condition vulnerability leads to arbitrary package installation as root. Red Hat rates this important (CVSS 8.8). Weakness: CWE-367. Affected package(s): PackageKit. Resolved in Red Hat advisory RHSA-2026:11504 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 9 more.
High [CVE-2026-40542] Authentication bypass due to missing mutual authentication verification
Authentication bypass due to missing mutual authentication verification. Red Hat rates this important (CVSS 7.3). Weakness: CWE-325. 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: OpenShift Developer Tools and Services.
High [CVE-2026-22754] Authorization bypass due to incorrect servlet path matching
Authorization bypass due to incorrect servlet path matching. Red Hat rates this important (CVSS 7.5). Weakness: CWE-551. 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-2026-22747] User impersonation via malformed X.509 certificate Common Name (CN) values
User impersonation via malformed X.509 certificate Common Name (CN) values. Red Hat rates this important (CVSS 8.1). Weakness: CWE-295. 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-2026-31488] Do not skip unrelated mode changes in DSC validation
Do not skip unrelated mode changes in DSC validation. Red Hat rates this important (CVSS 7.8). Weakness: CWE-1288. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:27354 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Enterprise Linux 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; and 2 more.
High [CVE-2026-31508] Avoid releasing netdev before teardown completes
Avoid releasing netdev before teardown completes. Red Hat rates this moderate (CVSS 7). Weakness: CWE-367. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:25217 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9.
High [CVE-2026-31474] fix tx.buf use-after-free in isotp_sendmsg()
fix tx.buf use-after-free in isotp_sendmsg(). Red Hat rates this important (CVSS 7.8). Weakness: CWE-364. Affected package(s): kernel. 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 10.0 Extended Update Support; Red Hat Enterprise Linux 9.
High [CVE-2026-31431] algif_aead - Revert to operating out-of-place
algif_aead - Revert to operating out-of-place. Red Hat rates this important (CVSS 7.8). Weakness: CWE-1288. Affected package(s): kernel, rhcos, kernel-rt, kpatch-patch. Resolved in Red Hat advisory RHSA-2026:13729 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: NVIDIA for RHEL 10; Red Hat OpenShift Container Platform 4.12; Red Hat OpenShift Container Platform 4.13; Red Hat OpenShift Container Platform 4.14; and 63 more.
High [CVE-2026-40575] Authentication bypass due to spoofed X-Forwarded-Uri header
Authentication bypass due to spoofed X-Forwarded-Uri header. Red Hat rates this important (CVSS 8.7). Weakness: CWE-290. 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 Ceph Storage 9.
High [CVE-2026-40938] Arbitrary code execution and secret exfiltration via malicious git commands
Arbitrary code execution and secret exfiltration via malicious git commands. Red Hat rates this important (CVSS 8.5). Weakness: CWE-88. Affected package(s): openshift-pipelines/pipelines-rhel9-operator:1780645012, serve-tkn-cli, openshift-builds/openshift-builds-image-processing-rhel9:1778682932, openshift-builds/openshift-builds-image-processing-rhel9:1780373835, openshift-builds/openshift-builds-git-cloner-rhel9:1780374151, openshift-builds/openshift-builds-image-bundler-rhel9:1780373867. Resolved in Red Hat advisory RHSA-2026:24484 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift Builds 1.7.4; Red Hat OpenShift Builds 1.8.0; Red Hat OpenShift Pipelines 1.21; Red Hat OpenShift Builds 1.7.1; and 2 more.
High [CVE-2026-40906] Critical data compromise and loss via SQL injection
Critical data compromise and loss via SQL injection. Red Hat rates this important (CVSS 8.8). Weakness: CWE-89. 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-2026-22016] Enhance Path Factories Redux (Oracle CPU 2026-04)
Enhance Path Factories Redux (Oracle CPU 2026-04). Red Hat rates this important (CVSS 7.5). Weakness: CWE-611. Affected package(s): java. Resolved in Red Hat advisory RHSA-2026:11829 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Build of OpenJDK 17.0.19; Red Hat Build of OpenJDK 17.0.9; Red Hat Build of OpenJDK 21.0.11; Red Hat Build of OpenJDK 25.0.3; and 20 more.
High [CVE-2026-34282] Enhance TLS connection handling (Oracle CPU 2026-04)
Enhance TLS connection handling (Oracle CPU 2026-04). Red Hat rates this important (CVSS 7.5). Weakness: CWE-835. Affected package(s): java. Resolved in Red Hat advisory RHSA-2026:11829 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Build of OpenJDK 17.0.19; Red Hat Build of OpenJDK 17.0.9; Red Hat Build of OpenJDK 21.0.11; Red Hat Build of OpenJDK 25.0.3; and 17 more.
High [CVE-2026-40895] Information disclosure via cross-domain redirects
Information disclosure via cross-domain redirects. Red Hat rates this important (CVSS 7.5). Weakness: CWE-212. Affected package(s): openshift-service-mesh/kiali-rhel9:1778164042, rhoai/odh-mod-arch-model-registry-rhel9:1780467147, rhoai/odh-mod-arch-gen-ai-rhel9:1778473763, devspaces/openvsx-rhel9:1779528224, rhoai/odh-dashboard-rhel9:1779189627, cryostat/cryostat-openshift-console-plugin-rhel9:4.2.0. Resolved in Red Hat advisory RHSA-2026:13826 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Cryostat 4 on RHEL 9; 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; and 43 more.
High [CVE-2026-40890] Denial of Service via malformed Markdown input
Denial of Service via malformed Markdown input. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-1286. Affected package(s): multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779925273, multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1780167118, multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1778867753, multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779579439, rhacm2/acm-grafana-rhel9:1780677003. Resolved in Red Hat advisory RHSA-2026:21769 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-40611] Arbitrary file write and deletion via path traversal from a malicious ACME server
Arbitrary file write and deletion via path traversal from a malicious ACME server. Red Hat rates this important (CVSS 8.8). Weakness: CWE-22. Affected package(s): devspaces/traefik-rhel9:1779786779. Resolved in Red Hat advisory RHSA-2026:21772 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat OpenShift Dev Spaces 3.28.
High [CVE-2026-40161] Information disclosure of Git API token via user-controlled serverURL
Information disclosure of Git API token via user-controlled serverURL. Red Hat rates this moderate (CVSS 7.7). Weakness: CWE-918. Affected package(s): openshift-builds/openshift-builds-webhook-rhel9:1780374084, openshift-builds/openshift-builds-controller-rhel9:1780373846, serve-tkn-cli, openshift-builds/openshift-builds-image-processing-rhel9:1780373835, openshift-builds/openshift-builds-git-cloner-rhel9:1780374151, openshift-builds/openshift-builds-rhel9-operator:1780480839. Resolved in Red Hat advisory RHSA-2026:24484 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-6786] Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150
Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150. Red Hat rates this important (CVSS 7.5). Weakness: CWE-787. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:10757 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 9 more.