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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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, 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
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.
Medium [CVE-2026-41481] Information Disclosure via Server-Side Request Forgery (SSRF) Redirect Bypass
Information Disclosure via Server-Side Request Forgery (SSRF) Redirect Bypass. Red Hat rates this important (CVSS 6.5). Weakness: CWE-918. 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: OpenShift Lightspeed; Red Hat Ansible Automation Platform 2; Red Hat OpenShift AI (RHOAI).
Medium [CVE-2026-31581] fix use-after-free on disconnect
fix use-after-free on disconnect. Red Hat rates this moderate (CVSS 6.3). Weakness: CWE-825. Affected package(s): kernel, kernel-rt. 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 1; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.
Critical [CVE-2026-6921] Race in GPU
Race in GPU. Red Hat rates this important (CVSS 9.6). Weakness: CWE-368. 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.
Critical [CVE-2026-6920] Out of bounds read in GPU
Out of bounds read in GPU. Red Hat rates this important (CVSS 9). 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.
Critical [CVE-2026-41179] Unauthenticated local command execution via exposed RC endpoint
Unauthenticated local command execution via exposed RC endpoint. Red Hat rates this important (CVSS 9.8). 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 Enterprise Linux.
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.
High [CVE-2026-41240] Cross-Site Scripting (XSS) via inconsistent tag sanitization
Cross-Site Scripting (XSS) via inconsistent tag sanitization. Red Hat rates this moderate (CVSS 8.1). Weakness: CWE-79. Affected package(s): rhoai/odh-mod-arch-model-registry-rhel9:1780467147, devspaces/openvsx-rhel9:1779528224, cryostat/cryostat-openshift-console-plugin-rhel9:4.2.0, devspaces/code-rhel9:1779814592, rhoai/odh-dashboard-rhel9:1780467029, automation-platform-ui. Resolved in Red Hat advisory RHSA-2026:27872 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9.
High [CVE-2026-34003] X.Org X server: Information exposure and denial of service via out-of-bounds memory access
X.Org X server: Information exposure and denial of service via out-of-bounds memory access. Red Hat rates this important (CVSS 7.8). Weakness: CWE-125. Affected package(s): tigervnc, xorg-x11-server-Xwayland, xorg-x11-server. Resolved in Red Hat advisory RHSA-2026:24341 — 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 6 Extended Lifecycle Support - EXTENSION; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 11 more.
High [CVE-2026-34001] X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption
X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption. Red Hat rates this important (CVSS 7.8). Weakness: CWE-825. Affected package(s): tigervnc, xorg-x11-server-Xwayland, xorg-x11-server. Resolved in Red Hat advisory RHSA-2026:24341 — 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 6 Extended Lifecycle Support - EXTENSION; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 11 more.
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