Red Hat Linux Red Hat Enterprise Linux Vulnerabilities & Security Advisories
1220 advisories tracked · Red Hat Security Data API · 3 listed in the CISA Known Exploited Vulnerabilities catalog
Every row below is a published Red Hat Linux advisory that VulniPulse classified as Red Hat Enterprise Linux, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 31 critical, 794 high, 375 medium, 17 low.
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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 Linux Red Hat Enterprise Linux advisories
High [CVE-2026-34986] Denial of Service via crafted JSON Web Encryption (JWE) object
Denial of Service via crafted JSON Web Encryption (JWE) object. Red Hat rates this important (CVSS 7.5). Weakness: CWE-131. Affected package(s): odf4/mcg-core-rhel9:1776403991, openshift-service-mesh/pilot-rhel8:1777319850, openshift-service-mesh/istio-cni-rhel8:1777374598, odf4/odf-cloudnative-pg-rhel9-operator:1776406131, multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1778867753, multicluster-engine/assisted-installer-agent-rhel9:1776351169. Resolved in Red Hat advisory RHSA-2026:25194 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Cryostat 4 on RHEL 9; Red Hat Enterprise Linux AppStream EUS (v. 10.0); Red Hat Enterprise Linux AppStream (v. 10); Red Hat Enterprise Linux AppStream (v. 8); and 77 more.
High [CVE-2026-34588] Arbitrary code execution and information disclosure via crafted EXR file
Arbitrary code execution and information disclosure via crafted EXR file. Red Hat rates this important (CVSS 8.8). Weakness: CWE-190. Affected package(s): openexr, rhaiis/model-opt-cuda-rhel9:1782352950, rhaiis/vllm-spyre-rhel9:1782352919, rhaiis/vllm-rocm-rhel9:1782353093, rhaiis/vllm-cuda-rhel9:1782352847. Resolved in Red Hat advisory RHSA-2026:15888 — 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 9.0 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.4 Extended Update Support; and 2 more.
High [CVE-2026-34982] arbitrary command execution via modeline sandbox bypass
arbitrary command execution via modeline sandbox bypass. Red Hat rates this important (CVSS 8.2). Weakness: CWE-78. Affected package(s): rhaiis/model-opt-cuda-rhel9:1782352950, rhaiis/vllm-spyre-rhel9:1782352919, vim, rhui5/haproxy-rhel9:1779798164, rhui5/rhua-rhel9:1779798222, rhaiis/vllm-rocm-rhel9:1782353093. 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 10.0 Extended Update 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; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; and 13 more.
High [CVE-2026-35535] Privilege escalation due to failure in privilege drop calls
Privilege escalation due to failure in privilege drop calls. Red Hat rates this important (CVSS 7.4). Weakness: CWE-272. Affected package(s): rhcos, sudo, rhui5/rhua-rhel9:1779798222, rhaiis/vllm-rocm-rhel9:1782353093, rhui5/installer-rhel9:1779798165. Resolved in Red Hat advisory RHSA-2026:20040 — 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 8.6 Advanced Mission Critical Update Support; and 18 more.
High [CVE-2026-31402] fix heap overflow in NFSv4.0 LOCK replay cache
fix heap overflow in NFSv4.0 LOCK replay cache. Red Hat rates this important (CVSS 7.8). Weakness: CWE-787. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:13936 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION); Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION); Red Hat Enterprise Linux Server (v. 7 ELS); Red Hat Enterprise Linux for Real Time (v. 7 ELS); and 60 more.
High [CVE-2026-35385] Privilege escalation via scp legacy protocol when not preserving file mode
Privilege escalation via scp legacy protocol when not preserving file mode. Red Hat rates this important (CVSS 7.5). Weakness: CWE-281. Affected package(s): rhaiis/model-opt-cuda-rhel9:1782352950, rhaiis/vllm-spyre-rhel9:1782352919, openssh, rhcos, rhui5/rhua-rhel9:1779798222, rhaiis/model-opt-cuda-rhel9:1780681984. Resolved in Red Hat advisory RHSA-2026:26542 — 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 22 more.
High [CVE-2026-23401] Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling
Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling. Red Hat rates this important (CVSS 8.1). Weakness: CWE-416. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:13936 — 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 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Telecommunications Update Service; Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions; and 6 more.
High [CVE-2026-4800] Arbitrary code execution via untrusted input in template imports
Arbitrary code execution via untrusted input in template imports. Red Hat rates this important (CVSS 8.1). Weakness: CWE-94. Affected package(s): odf4/ocs-client-console-rhel9:1778050558, odf4/mcg-core-rhel9:1776403991, cluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996, odf4/ocs-client-rhel9-operator:1778049818, odf4/odf-cloudnative-pg-rhel9-operator:1776406131, satellite/iop-remediations-rhel9:1776194798. Resolved in Red Hat advisory RHSA-2026:29795 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Ansible Automation Platform 2.6 for RHEL 9; Cryostat 4 on RHEL 9; Red Hat Enterprise Linux AppStream (v. 10); Red Hat Enterprise Linux High Availability EUS (v. 10.0); and 84 more.
High [CVE-2026-5201] Denial of Service via heap-based buffer overflow when processing a specially crafted JPEG image
Denial of Service via heap-based buffer overflow when processing a specially crafted JPEG image. Red Hat rates this important (CVSS 7.5). Weakness: CWE-122. Affected package(s): gdk-pixbuf2, rhaiis/vllm-rocm-rhel9:1778244531, rhaiis/vllm-cuda-rhel9:1779223654, rhaiis/vllm-cuda-rhel9:1778274666, rhaiis/vllm-spyre-rhel9:1778244546, rhaiis/model-opt-cuda-rhel9:1780681984. Resolved in Red Hat advisory RHSA-2026:10707 — 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 12 more.
High [CVE-2026-33984] Heap buffer overflow allows arbitrary code execution via crafted pixel data
Heap buffer overflow allows arbitrary code execution via crafted pixel data. Red Hat rates this important (CVSS 7.5). Weakness: CWE-131. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:8945 — 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 8.2 Advanced Update 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-2026-33983] Denial of Service via specially crafted Remote Desktop Protocol messages
Denial of Service via specially crafted Remote Desktop Protocol messages. Red Hat rates this important (CVSS 7.5). Weakness: CWE-190. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:8945 — 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 8.2 Advanced Update 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-2026-21710] Denial of Service due to crafted HTTP `__proto__` header
Denial of Service due to crafted HTTP `__proto__` header. Red Hat rates this important (CVSS 7.5). Weakness: CWE-843. Affected package(s): nodejs:20, nodejs:22, nodejs22, nodejs24, nodejs:24. Resolved in Red Hat advisory RHSA-2026:7350 — 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.
High [CVE-2026-5121] Arbitrary code execution via integer overflow in ISO9660 image processing
Arbitrary code execution via integer overflow in ISO9660 image processing. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-190. Affected package(s): libarchive, rhcos, rhpam, rhaiis/vllm-rocm-rhel9:1778244531, rhaiis/vllm-cuda-rhel9:1778274666, rhui5/cds-kubernetes-tp-rhel9:1777459441. Resolved in Red Hat advisory RHSA-2026:20040 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: 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; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 24 more.
High [CVE-2026-20664] Processing maliciously crafted web content may lead to an unexpected process crash
Processing maliciously crafted web content may lead to an unexpected process crash. Red Hat rates this important (CVSS 8.8). Weakness: CWE-120. Affected package(s): webkit2gtk3, webkitgtk4. Resolved in Red Hat advisory RHSA-2026:19206 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: 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; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; and 8 more.
High [CVE-2026-28859] A malicious website may be able to process restricted web content outside the sandbox
A malicious website may be able to process restricted web content outside the sandbox. Red Hat rates this important (CVSS 8.8). Weakness: CWE-120. Affected package(s): webkit2gtk3, webkitgtk4. Resolved in Red Hat advisory RHSA-2026:19206 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: 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; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; and 8 more.
High [CVE-2026-33941] Arbitrary code execution via CLI precompiler input sanitization flaw
Arbitrary code execution via CLI precompiler input sanitization flaw. Red Hat rates this important (CVSS 8.2). Weakness: CWE-94. Affected package(s): cluster-observability-operator/logging-console-plugin-pf4-rhel9:1782839279, cluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996, cluster-observability-operator/logging-console-plugin-pf5-rhel9:1782840539, devspaces/code-rhel9:1776744110. Resolved in Red Hat advisory RHSA-2026:34342 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift Dev Spaces 3.27; Logging Subsystem for Red Hat OpenShift; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; and 1 more.
High [CVE-2026-33940] Arbitrary code execution via crafted template context
Arbitrary code execution via crafted template context. Red Hat rates this important (CVSS 8.1). Weakness: CWE-94. Affected package(s): cluster-observability-operator/logging-console-plugin-pf4-rhel9:1782839279, cluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996, cluster-observability-operator/logging-console-plugin-pf5-rhel9:1782840539, devspaces/code-rhel9:1776744110. Resolved in Red Hat advisory RHSA-2026:34342 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift Dev Spaces 3.27; Logging Subsystem for Red Hat OpenShift; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; and 1 more.
High [CVE-2026-33939] Denial of Service via malformed decorator syntax in template compilation
Denial of Service via malformed decorator syntax in template compilation. Red Hat rates this important (CVSS 7.5). Weakness: CWE-248. Affected package(s): cluster-observability-operator/logging-console-plugin-pf4-rhel9:1782839279, cluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996, cluster-observability-operator/logging-console-plugin-pf5-rhel9:1782840539, devspaces/code-rhel9:1776744110. Resolved in Red Hat advisory RHSA-2026:34342 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift Dev Spaces 3.27; Logging Subsystem for Red Hat OpenShift; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.
High [CVE-2026-33938] Arbitrary code execution via @partial-block overwrite
Arbitrary code execution via @partial-block overwrite. Red Hat rates this important (CVSS 8.1). Weakness: CWE-917. Affected package(s): cluster-observability-operator/logging-console-plugin-pf4-rhel9:1782839279, cluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996, cluster-observability-operator/logging-console-plugin-pf5-rhel9:1782840539, devspaces/code-rhel9:1776744110. Resolved in Red Hat advisory RHSA-2026:34342 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift Dev Spaces 3.27; Logging Subsystem for Red Hat OpenShift; Red Hat Enterprise Linux 8.
High [CVE-2026-33896] Forge (node-forge): Certificate validation bypass allows unauthorized certificate issuance
Forge (node-forge): Certificate validation bypass allows unauthorized certificate issuance. Red Hat rates this important (CVSS 7.4). Weakness: CWE-295. Affected package(s): rhdh/rhdh-hub-rhel9:1777903262, cluster-observability-operator/logging-console-plugin-pf4-rhel9:1782839279, automation-gateway, rhdh/rhdh-hub-rhel9:1776784286. Resolved in Red Hat advisory RHSA-2026:13826 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Ansible Automation Platform 2.5 for RHEL 8; Red Hat Ansible Automation Platform 2.5 for RHEL 9; Red Hat Developer Hub 1.8; Red Hat Developer Hub 1.9; and 8 more.