Red Hat Linux Security Advisories & CVEs
3066 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-2026-34486] Missing Encryption of Sensitive Data due to EncryptInterceptor bypass
Missing Encryption of Sensitive Data due to EncryptInterceptor bypass. Red Hat rates this important (CVSS 7.5). Weakness: CWE-807. 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 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; and 8 more.
High [CVE-2026-32990] Improper Input Validation vulnerability due to incomplete fix
Improper Input Validation vulnerability due to incomplete fix. Red Hat rates this moderate (CVSS 7.3). Weakness: CWE-184. Affected package(s): tomcat, jws6-tomcat. Resolved in Red Hat advisory RHSA-2026:12195 — 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-2026-29146] Information disclosure via Padding Oracle vulnerability in EncryptInterceptor
Information disclosure via Padding Oracle vulnerability in EncryptInterceptor. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1240. Affected package(s): jws6-tomcat. Resolved in Red Hat advisory RHSA-2026:20405 — 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 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; and 10 more.
High [CVE-2026-34734] HDF5 h5dump: Arbitrary code execution via a crafted HDF5 file
HDF5 h5dump: Arbitrary code execution via a crafted HDF5 file. Red Hat rates this important (CVSS 7.8). 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 AI (RHEL AI) 3.
High [CVE-2026-34971] Sandbox escape due to miscompiled heap access on aarch64
Sandbox escape due to miscompiled heap access on aarch64. Red Hat rates this important (CVSS 8.5). 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 Connectivity Link 1.
High [CVE-2026-39983] Command injection via CRLF sequences in file path parameters
Command injection via CRLF sequences in file path parameters. Red Hat rates this important (CVSS 8.6). Weakness: CWE-93. Affected package(s): rhdh/rhdh-hub-rhel9:1777903262, 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 Developer Hub 1.8; Red Hat Developer Hub 1.9; Red Hat OpenShift Container Platform 4.
High [CVE-2026-35205] Arbitrary code execution due to insufficient plugin provenance verification
Arbitrary code execution due to insufficient plugin provenance verification. Red Hat rates this important (CVSS 8). Weakness: CWE-347. Affected package(s): helm-cli. Resolved in Red Hat advisory RHSA-2026:26441 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-35204] Arbitrary file write via specially crafted plugin
Arbitrary file write via specially crafted plugin. Red Hat rates this important (CVSS 8.2). Weakness: CWE-22. Affected package(s): helm-cli. Resolved in Red Hat advisory RHSA-2026:26441 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2025-62718] Server-Side Request Forgery and proxy bypass due to improper hostname normalization
Server-Side Request Forgery and proxy bypass due to improper hostname normalization. Red Hat rates this important (CVSS 7). Weakness: CWE-1289. Affected package(s): openshift-service-mesh/kiali-rhel9:1776149682, openshift-service-mesh/kiali-ossmc-rhel9:1776151134, rhoai/odh-mod-arch-model-registry-rhel9:1780467147, devspaces/dashboard-rhel9:1776795511, openshift-service-mesh/kiali-ossmc-rhel8:1776202125, rhoai/odh-mod-arch-gen-ai-rhel9:1778473763. 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 Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Security for Kubernetes 4.10; and 36 more.
High [CVE-2026-4660] Arbitrary file reads via maliciously crafted URL
Arbitrary file reads via maliciously crafted URL. Red Hat rates this important (CVSS 7.5). Weakness: CWE-22. Affected package(s): rhtas/client-server-rhel9:1780399582. Resolved in Red Hat advisory RHSA-2026:24478 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Trusted Artifact Signer 1.3; Red Hat OpenShift Container Platform 4.
High [CVE-2026-40024] Arbitrary code execution via path traversal in tsk_recover
Arbitrary code execution via path traversal in tsk_recover. Red Hat rates this important (CVSS 7.9). Weakness: CWE-22. 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-2026-5858] Arbitrary code execution via heap buffer overflow in WebML
Arbitrary code execution via heap buffer overflow in WebML. Red Hat rates this important (CVSS 8.8). Weakness: CWE-131. 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-2026-39892] Buffer overflow via non-contiguous buffer in API
Buffer overflow via non-contiguous buffer in API. Red Hat rates this important (CVSS 7.3). Weakness: CWE-131. Affected package(s): ansible-automation-platform, quay/quay-rhel8:1779811473, quay/quay-rhel8:1779689392, ansible-automation-platform-tech-preview/metrics-service-rhel9:1779760844, automation-controller, python3.12-cryptography. Resolved in Red Hat advisory RHSA-2026:23361 — 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 Ansible Automation Platform 2.6 for RHEL 9; Red Hat AI Inference Server 3.3; and 20 more.
High [CVE-2026-39883] github.com/open-telemetry/opentelemetry-go: OpenTelemetry-Go: Arbitrary code execution via PATH hijacking on BSD/Solaris
github.com/open-telemetry/opentelemetry-go: OpenTelemetry-Go: Arbitrary code execution via PATH hijacking on BSD/Solaris. Red Hat rates this important (CVSS 8.8). Weakness: CWE-426. Affected package(s): multicluster-engine/assisted-service. Resolved in Red Hat advisory RHSA-2026:26254 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Openshift Data Foundation 4.22; Red Hat OpenShift Workload Availability 0.3; Red Hat OpenShift Workload Availability 0.8.
High [CVE-2026-23869] denial of service via specially crafted HTTP requests to Server Function endpoints
denial of service via specially crafted HTTP requests to Server Function endpoints. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. 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-2026-5795] early return from the JASPIAuthenticator class without clearing ThreadLocal variables
early return from the JASPIAuthenticator class without clearing ThreadLocal variables. Red Hat rates this important (CVSS 7.4). Weakness: CWE-226. Affected package(s): jetty-ee10-plus, jetty-ee10-servlets, jetty-ee10-apache-jsp, jetty-ee10-webapp, offline-knowledge-portal/rhokp-rhel9:1782239370, jetty-ee10-servlet. Resolved in Red Hat advisory RHSA-2026:25089 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14; Red Hat Offline Knowledge Portal 1.2.7; Red Hat Offline Knowledge Portal 1.2.3; Red Hat Offline Knowledge Portal 1.2.4; and 2 more.
High [CVE-2026-32280] Denial of Service vulnerability in certificate chain building
Denial of Service vulnerability in certificate chain building. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected package(s): rhc, openshift-service-mesh/pilot-rhel8:1777319850, openshift-service-mesh/istio-rhel9-operator:1778149657, grafana-pcp, openshift-service-mesh/istio-cni-rhel8:1777374598, rhtas/client-server-rhel9:1780399582. Resolved in Red Hat advisory RHSA-2026:11507 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Ansible Automation Platform 2.6 for RHEL 10; Red Hat Enterprise Linux Server (v. 7 ELS); Red Hat Ansible Automation Platform 2.5 for RHEL 8; Red Hat OpenShift Container Platform 4.14; and 121 more.
High [CVE-2026-32283] Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages
Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages. Red Hat rates this important (CVSS 7.5). Weakness: CWE-764. Affected package(s): rhc, grafana-pcp, skopeo, host-metering, container-tools:rhel8, git-lfs. Resolved in Red Hat advisory RHSA-2026:11507 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Cryostat 4 on RHEL 9; Red Hat Ansible Automation Platform 2.5 for RHEL 8; Red Hat Ansible Automation Platform 2.5 for RHEL 9; Red Hat Ansible Automation Platform 2.6 for RHEL 10; and 87 more.
High [CVE-2026-27143] possible memory corruption after bound check elimination
possible memory corruption after bound check elimination. Red Hat rates this moderate (CVSS 8.1). Weakness: CWE-733. Affected package(s): openshift4/openshift-route-controller-manager-rhel8:1781867531, openshift4/ose-gcp-cloud-controller-manager-rhel9:1781927538, openshift4/ose-nutanix-machine-controllers-rhel9:1781926777, openshift4/ose-cluster-bootstrap-rhel9:1779251452, openshift4/ose-cluster-policy-controller-rhel9:1779258265, openshift4/ose-machine-api-provider-aws-rhel9:1779249874. Resolved in Red Hat advisory RHSA-2026:10704 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
High [CVE-2026-33810] Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application
Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application. Red Hat rates this important (CVSS 8.8). Weakness: CWE-1289. Affected package(s): rhtas/client-server-rhel9:1780399582, golang1, cryostat/cryostat-storage-rhel9:4.1.1, opentelemetry-collector, hawtio-operator-container, web-terminal/web-terminal-exec-rhel9:1780425077. Resolved in Red Hat advisory RHSA-2026:28047 — 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 Satellite 6.19 for RHEL 9; Red Hat Enterprise Linux AppStream EUS (v. 10.0); and 78 more.