Red Hat Linux Security Advisories & CVEs
5244 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited backstops use a safe source cadence
Android app · Google Play
Monitor Linux CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.
Security advisories for your Linux 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.
Official source
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 Linux advisories
Medium [CVE-2026-21636] Nodejs network segmentation bypass
Nodejs network segmentation bypass. Red Hat rates this moderate (CVSS 5.8). Weakness: CWE-281. Affected package(s): nodejs20-main, nodejs25-main, nodejs22-main, nodejs24-main. Resolved in Red Hat advisory RHSA-2026:6402 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2025-59466] Nodejs denial of service
Nodejs denial of service. Red Hat rates this moderate (CVSS 5.9). Weakness: CWE-770. Affected package(s): nodejs22, nodejs:20, nodejs:22, nodejs25-main, nodejs:24, nodejs24-main. Resolved in Red Hat advisory RHSA-2026:1842 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1.
Medium [CVE-2025-59464] Nodejs memory leak
Nodejs memory leak. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-770. Affected package(s): nodejs20-main, nodejs25-main, nodejs22-main, nodejs24-main. Resolved in Red Hat advisory RHSA-2026:7657 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2025-15281] wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory
wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory. Red Hat rates this low (CVSS 5.9). Weakness: CWE-908. Affected package(s): insights-proxy/insights-proxy-container-rhel9:1773685509, rhui5/rhua-rhel9:1773670137, glibc, discovery/discovery-server-rhel9:1773273243, discovery/discovery-ui-rhel9:1773273070, glibc-main. Resolved in Red Hat advisory RHSA-2026:18139 — 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.
Medium [CVE-2024-31884] Improper use of Pybind
Improper use of Pybind. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-295. Affected package(s): ceph, rhceph/rhceph. Resolved in Red Hat advisory RHSA-2026:2711 — 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 1.
Medium [CVE-2026-21941] Optimizer unspecified vulnerability (CPU Jan 2026)
Optimizer unspecified vulnerability (CPU Jan 2026). Red Hat rates this moderate (CVSS 4.9). Affected package(s): mysql8.4, mysql:8.0, mysql, mysql:8.4. Resolved in Red Hat advisory RHSA-2026:5580 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
Medium [CVE-2026-21936] InnoDB unspecified vulnerability (CPU Jan 2026)
InnoDB unspecified vulnerability (CPU Jan 2026). Red Hat rates this moderate (CVSS 4.9). Affected package(s): mysql8.4, mysql:8.0, mysql, mysql:8.4. Resolved in Red Hat advisory RHSA-2026:5580 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
Medium [CVE-2026-21968] Optimizer unspecified vulnerability (CPU Jan 2026)
Optimizer unspecified vulnerability (CPU Jan 2026). Red Hat rates this moderate (CVSS 6.5). Affected package(s): mariadb:10.11, mysql8.4, mariadb10.11, mysql:8.0, mysql, mysql:8.4. Resolved in Red Hat advisory RHSA-2026:0334 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
Medium [CVE-2026-21937] DDL unspecified vulnerability (CPU Jan 2026)
DDL unspecified vulnerability (CPU Jan 2026). Red Hat rates this moderate (CVSS 4.9). Affected package(s): mysql8.4, mysql:8.0, mysql, mysql:8.4. Resolved in Red Hat advisory RHSA-2026:5580 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
Medium [CVE-2026-21964] Thread Pooling unspecified vulnerability (CPU Jan 2026)
Thread Pooling unspecified vulnerability (CPU Jan 2026). Red Hat rates this moderate (CVSS 4.9). Affected package(s): mysql8.4, mysql:8.0, mysql, mysql:8.4. Resolved in Red Hat advisory RHSA-2026:5580 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
Critical [CVE-2026-22797] OpenStack keystonemiddleware: Privilege escalation and user impersonation via forged authentication headers
OpenStack keystonemiddleware: Privilege escalation and user impersonation via forged authentication headers. Red Hat rates this important (CVSS 9.9). Weakness: CWE-290. Affected package(s): openshift4/ose-ironic-rhel9:1772029626, openshift4/ose-ironic-rhel9:1774266098, openshift4/ose-ironic-rhel9:1773138063, openshift4/ose-ironic-rhel9:1772477045, openshift4/ose-ironic-rhel9:1772176749. Resolved in Red Hat advisory RHSA-2026:3402 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift Container Platform 4.17; Red Hat OpenShift Container Platform 4.18; Red Hat OpenShift Container Platform 4.19; Red Hat OpenShift Container Platform 4.20; and 1 more.
High [CVE-2026-23884] Denial of Service and potential code execution via use-after-free vulnerability
Denial of Service and potential code execution via use-after-free vulnerability. Red Hat rates this important (CVSS 7.6). Weakness: CWE-416. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:2952 — 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 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 11 more.
High [CVE-2026-23883] Arbitrary code execution and denial of service via malicious server
Arbitrary code execution and denial of service via malicious server. Red Hat rates this important (CVSS 7.6). Weakness: CWE-416. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:2952 — 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-2026-23534] Arbitrary code execution and denial of service via client-side heap buffer overflow
Arbitrary code execution and denial of service via client-side heap buffer overflow. Red Hat rates this important (CVSS 7.6). Weakness: CWE-122. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:2952 — 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 9.4 Extended Update Support; Red Hat Enterprise Linux 9.6 Extended Update Support; and 1 more.
High [CVE-2026-23533] Heap buffer overflow leads to denial of service and potential code execution
Heap buffer overflow leads to denial of service and potential code execution. Red Hat rates this important (CVSS 7.6). Weakness: CWE-122. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:2952 — 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 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 11 more.
High [CVE-2026-23532] Denial of Service and potential code execution via client-side heap buffer overflow
Denial of Service and potential code execution via client-side heap buffer overflow. Red Hat rates this important (CVSS 7.6). Weakness: CWE-122. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:2952 — 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 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 11 more.
High [CVE-2026-23531] Heap buffer overflow via crafted RDPGFX surface updates leads to denial of service and potential code execution.
Heap buffer overflow via crafted RDPGFX surface updates leads to denial of service and potential code execution.. Red Hat rates this important (CVSS 7.6). Weakness: CWE-122. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:2952 — 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 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 11 more.
High [CVE-2026-23530] Heap buffer overflow leading to denial of service and potential code execution from a malicious server.
Heap buffer overflow leading to denial of service and potential code execution from a malicious server.. Red Hat rates this important (CVSS 7.6). Weakness: CWE-122. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:2952 — 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 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 11 more.
High [CVE-2025-68616] WeasyPrint Server-Side Request Forgery (SSRF)
WeasyPrint Server-Side Request Forgery (SSRF). Red Hat rates this important (CVSS 7.5). Weakness: CWE-918. 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 Ansible Automation Platform 2.
High [CVE-2026-0603] Information disclosure and data deletion via second-order SQL injection
Information disclosure and data deletion via second-order SQL injection. Red Hat rates this important (CVSS 8.3). Weakness: CWE-89. Affected package(s): eap7-hibernate, eap7-wildfly, org.hibernate/hibernate-core:5.3.38.Final-redhat. Resolved in Red Hat advisory RHSA-2026:4924 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7; Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7; Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7; Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8; and 6 more.