Red Hat Linux Security Advisories & CVEs
4426 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-2019-25777] Arbitrary code execution via unrestricted package variable assignment
Arbitrary code execution via unrestricted package variable assignment. Red Hat rates this important (CVSS 8.1). Weakness: CWE-502. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 2 more. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat package: perl-yaml.
High [CVE-2017-20285] Arbitrary destructor method execution via crafted YAML document
Arbitrary destructor method execution via crafted YAML document. Red Hat rates this important (CVSS 7.4). Weakness: CWE-502. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 2 more. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat package: perl-yaml.
High [CVE-2026-105163] Signature verification bypass via separate image tag resolution
Signature verification bypass via separate image tag resolution. Red Hat rates this important (CVSS 8.1). Weakness: CWE-367. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-104873] Authorization bypass via improper resource handler registration
Authorization bypass via improper resource handler registration. Red Hat rates this important (CVSS 8.1). Weakness: CWE-430. Affected products named by the advisory: Ansible Automation Orchestrator 2026; Exploit Intelligence; Migration Toolkit for Applications 8; OpenShift Lightspeed; and 2 more. Affected products named by the advisory: Red Hat Ansible Automation Platform 2; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-104988] EST fullcmc authentication bypass allows certificate mis-issuance with arbitrary subject
EST fullcmc authentication bypass allows certificate mis-issuance with arbitrary subject. Red Hat rates this important (CVSS 8.1). Weakness: CWE-290. Affected products named by the advisory: Red Hat Certificate System 10; Red Hat Certificate System 11.
High [CVE-2026-104861] Denial of Service via crafted SVG input
Denial of Service via crafted SVG input. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1333. Affected products named by the advisory: Red Hat Discovery 2; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-104854] Arbitrary code execution via insecure socket permissions
Arbitrary code execution via insecure socket permissions. Red Hat rates this important (CVSS 7.8). Weakness: CWE-379.
High [CVE-2026-104851] Arbitrary code execution via crafted reference documents
Arbitrary code execution via crafted reference documents. Red Hat rates this important (CVSS 8.8). Weakness: CWE-94. Affected products named by the advisory: Exploit Intelligence; Lightspeed Core; OpenShift Lightspeed; Red Hat AI Inference Server; and 4 more. Affected products named by the advisory: Red Hat Ansible Automation Platform 2; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI); Red Hat Satellite 6.
High [CVE-2026-104845] Denial of Service via unbounded memory allocation during deserialization
Denial of Service via unbounded memory allocation during deserialization. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected product named by the advisory: Ansible Automation Orchestrator 2026.
High [CVE-2026-104843] Arbitrary code execution via malicious package extraction on Windows
Arbitrary code execution via malicious package extraction on Windows. Red Hat rates this important (CVSS 7.8). Weakness: CWE-22. Affected products named by the advisory: Lightspeed Core; Lightspeed Services for Advanced Cluster Management; OpenShift Lightspeed; Red Hat AI Inference Server; and 2 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-66054] Denial of Service via improper handling of compressed data
Denial of Service via improper handling of compressed data. Red Hat rates this important (CVSS 7.5). Weakness: CWE-409. Red Hat lists fixing advisory RHSA-2026:74369 with package thrift-main-0.25.0-0.1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Ceph Storage 7; Red Hat Ceph Storage 8; Red Hat Ceph Storage 9; and 1 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3.
High [CVE-2026-66081] Denial of Service via uninitialized pointer access in c_glib bindings
Denial of Service via uninitialized pointer access in c_glib bindings. Red Hat rates this important. Weakness: CWE-824. Red Hat lists fixing advisory RHSA-2026:74369 with package thrift-main-0.25.0-0.1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Ceph Storage 7; Red Hat Ceph Storage 8; Red Hat Ceph Storage 9; and 1 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3.
High [CVE-2026-66837] Denial of Service via buffer overflow in PHP bindings
Denial of Service via buffer overflow in PHP bindings. Red Hat rates this important (CVSS 7.5). Weakness: CWE-787. Red Hat lists fixing advisory RHSA-2026:74369 with package thrift-main-0.25.0-0.1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Ceph Storage 7; Red Hat Ceph Storage 8; Red Hat Ceph Storage 9; and 1 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3.
High [CVE-2026-66858] Denial of Service via deeply nested unknown fields
Denial of Service via deeply nested unknown fields. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Red Hat lists fixing advisory RHSA-2026:74369 with package thrift-main-0.25.0-0.1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Ceph Storage 7; Red Hat Ceph Storage 8; Red Hat Ceph Storage 9; and 1 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3.
High [CVE-2026-83663] Denial of Service via unbounded recursion in Go transports
Denial of Service via unbounded recursion in Go transports. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected products named by the advisory: Ansible Automation Orchestrator 2026; Cryostat 4; Logging Subsystem for Red Hat OpenShift; Multicluster Global Hub; and 16 more. Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2; Red Hat AI Inference Server; Red Hat Ceph Storage 5; Red Hat Ceph Storage 6; and 12 more.
High [CVE-2026-83745] Denial of Service via excessive memory allocation in WebSocket transport
Denial of Service via excessive memory allocation in WebSocket transport. Red Hat rates this important (CVSS 7.5). Weakness: CWE-130. Red Hat lists fixing advisory RHSA-2026:74369 with package thrift-main-0.25.0-0.1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Ceph Storage 7; Red Hat Ceph Storage 8; Red Hat Ceph Storage 9; and 1 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3.
High [CVE-2026-96277] Denial of Service via uncaught exception in Ruby bindings
Denial of Service via uncaught exception in Ruby bindings. Red Hat rates this important. Weakness: CWE-248. Red Hat lists fixing advisory RHSA-2026:74369 with package thrift-main-0.25.0-0.1.hum1. Affected product named by the advisory: Red Hat Hardened Images.
High [CVE-2026-94657] Denial of Service via improper resource allocation in JavaME bindings
Denial of Service via improper resource allocation in JavaME bindings. Red Hat rates this important. Weakness: CWE-770. Red Hat lists fixing advisory RHSA-2026:74369 with package thrift-main-0.25.0-0.1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Ceph Storage 7; Red Hat Ceph Storage 8; Red Hat Ceph Storage 9; and 1 more. Affected products named by the advisory: Red Hat Enterprise Linux AI (RHEL AI) 3.
High [CVE-2026-94646] Denial of Service via prototype pollution in Node.js bindings
Denial of Service via prototype pollution in Node.js bindings. Red Hat rates this important (CVSS 7.5). Weakness: CWE-915. Red Hat lists fixing advisory RHSA-2026:74369 with package thrift-main-0.25.0-0.1.hum1. Affected product named by the advisory: Red Hat Hardened Images.
High [CVE-2026-94637] Denial of Service via improper handling of compressed data
Denial of Service via improper handling of compressed data. Red Hat rates this important (CVSS 7.5). Weakness: CWE-409. Affected products named by the advisory: Ansible Automation Orchestrator 2026; Cryostat 4; Logging Subsystem for Red Hat OpenShift; Multicluster Global Hub; and 16 more. Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2; Red Hat AI Inference Server; Red Hat Ceph Storage 5; Red Hat Ceph Storage 6; and 12 more.