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-2026-33816] Memory-safety vulnerability
Memory-safety vulnerability. Red Hat rates this important (CVSS 8.3). Weakness: CWE-787. Affected package(s): advanced-cluster-security/rhacs-scanner-v4-rhel8:1777986630, rhtas/updatetree-rhel9:1780053572, rhtas/createtree-rhel9:1780053572, advanced-cluster-security/rhacs-scanner-v4-rhel8:1777307791, custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9-operator:1779953535, go-fdo-server. Resolved in Red Hat advisory RHSA-2026:13907 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Cryostat 4 on RHEL 9; Red Hat Enterprise Linux 10; RHEM 1.0 for RHEL 9; Red Hat Advanced Cluster Management for Kubernetes 2.15; and 16 more.
High [CVE-2026-33815] Memory-safety vulnerability
Memory-safety vulnerability. Red Hat rates this important (CVSS 8.3). Weakness: CWE-787. Affected package(s): advanced-cluster-security/rhacs-scanner-v4-rhel8:1777986630, rhtas/updatetree-rhel9:1780053572, rhtas/createtree-rhel9:1780053572, advanced-cluster-security/rhacs-scanner-v4-rhel8:1777307791, custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9-operator:1779953535, rhtas/trillian-logserver-rhel9:1780053572. Resolved in Red Hat advisory RHSA-2026:24482 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Cryostat 4 on RHEL 9; RHEM 1.0 for RHEL 9; Red Hat Advanced Cluster Management for Kubernetes 2.15; Red Hat Advanced Cluster Security for Kubernetes 4.10; and 17 more.
High [CVE-2026-4740] Open Cluster Management (OCM): Cross-cluster privilege escalation via improper Kubernetes client certificate renewal validation
Open Cluster Management (OCM): Cross-cluster privilege escalation via improper Kubernetes client certificate renewal validation. Red Hat rates this important (CVSS 8.2). 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-2026-20911] Arbitrary Code Execution via specially crafted file
Arbitrary Code Execution via specially crafted file. Red Hat rates this important (CVSS 7.5). Weakness: CWE-120. 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 7; Red Hat Enterprise Linux 8.
High [CVE-2026-21413] Arbitrary code execution via heap-based buffer overflow in lossless JPEG loading
Arbitrary code execution via heap-based buffer overflow in lossless JPEG loading. Red Hat rates this important (CVSS 7.5). Weakness: CWE-787. Affected package(s): LibRaw. Resolved in Red Hat advisory RHSA-2026:11360 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Telecommunications Update Service; and 8 more.
High [CVE-2026-20889] Arbitrary code execution via specially crafted image file
Arbitrary code execution via specially crafted image file. Red Hat rates this important (CVSS 7.5). Weakness: CWE-120. Affected package(s): LibRaw. Resolved in Red Hat advisory RHSA-2026:13284 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Telecommunications Update Service; and 3 more.
High [CVE-2026-24660] Memory Corruption via Malicious File Processing
Memory Corruption via Malicious File Processing. Red Hat rates this important (CVSS 7.5). Weakness: CWE-120. Affected package(s): LibRaw. Resolved in Red Hat advisory RHSA-2026:13284 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Telecommunications Update Service; and 4 more.
High [CVE-2026-24450] Arbitrary code execution via a specially crafted malicious file
Arbitrary code execution via a specially crafted malicious file. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-190. Affected package(s): LibRaw. Resolved in Red Hat advisory RHSA-2026:11360 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9.
High [CVE-2026-5735] Memory safety bugs fixed in Firefox 149.0.2 and Thunderbird 149.0.2
Memory safety bugs fixed in Firefox 149.0.2 and Thunderbird 149.0.2. Red Hat rates this important (CVSS 7.5). Weakness: CWE-787. 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-2026-5734] Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2
Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2. Red Hat rates this important (CVSS 8.8). Weakness: CWE-787. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:11805 — 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 10 more.
High [CVE-2026-5733] Incorrect boundary conditions in the Graphics: WebGPU component
Incorrect boundary conditions in the Graphics: WebGPU component. Red Hat rates this important (CVSS 8.8). Weakness: CWE-787. 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-2026-5732] Incorrect boundary conditions, integer overflow in the Graphics: Text component
Incorrect boundary conditions, integer overflow in the Graphics: Text component. Red Hat rates this important (CVSS 8.8). Weakness: CWE-190. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:11805 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7.
High [CVE-2026-5731] Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2
Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2. Red Hat rates this important (CVSS 8.8). Weakness: CWE-787. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:11805 — 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 10 more.
High [CVE-2026-28808] Erlang OTP inets modules: Unauthenticated access to protected CGI scripts via incorrect authorization
Erlang OTP inets modules: Unauthenticated access to protected CGI scripts via incorrect authorization. Red Hat rates this important (CVSS 7.4). Weakness: CWE-551. 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 OpenStack Platform 16.2; Red Hat OpenStack Platform 17.1.
High [CVE-2026-32144] Erlang OTP public_key: OCSP authorization bypass and information disclosure due to missing signature verification
Erlang OTP public_key: OCSP authorization bypass and information disclosure due to missing signature verification. Red Hat rates this important (CVSS 7.4). Weakness: CWE-347. 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 OpenStack Platform 16.2; Red Hat OpenStack Platform 17.1; Red Hat OpenStack Platform 18.0.
High [CVE-2026-34197] RCE via crafted discovery URI in Jolokia JMX-HTTP bridge
RCE via crafted discovery URI in Jolokia JMX-HTTP bridge. Red Hat rates this important (CVSS 8.8). Weakness: CWE-78. 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 Expansion Pack.
High [CVE-2026-5868] Heap buffer overflow in ANGLE
Heap buffer overflow in ANGLE. Red Hat rates this important (CVSS 8.8). Weakness: CWE-787. 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-2026-5862] Inappropriate implementation in V8
Inappropriate implementation in V8. Red Hat rates this important (CVSS 8.8). Weakness: CWE-130. 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-2026-35172] Information disclosure via stale references after content deletion
Information disclosure via stale references after content deletion. Red Hat rates this important (CVSS 7.5). Weakness: CWE-524. Affected package(s): openshift4/ose-operator-lifecycle-manager:1781122773, openshift4/ose-operator-lifecycle-manager-rhel9:1779915499, openshift4/ose-operator-lifecycle-manager:1781123052, openshift4/ose-operator-lifecycle-manager:1781833795, openshift4/ose-operator-lifecycle-manager-rhel9:1780957268. Resolved in Red Hat advisory RHSA-2026:28893 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift Container Platform 4.12; Red Hat OpenShift Container Platform 4.13; Red Hat OpenShift Container Platform 4.14; Red Hat OpenShift Container Platform 4.15; and 3 more.
High [CVE-2026-35029] Remote code execution and privilege escalation via unrestricted proxy configuration endpoint
Remote code execution and privilege escalation via unrestricted proxy configuration endpoint. Red Hat rates this important (CVSS 8.8). Weakness: CWE-425. Affected package(s): ansible-automation-platform, rhoai/odh-llama-stack-core-rhel9:1781826406, rhoai/odh-llama-stack-core-rhel9:1782310008. Resolved in Red Hat advisory RHSA-2026:28960 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Ansible Automation Platform 2.6; Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3.