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-2026-39883] 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; Cert Manager support for Red Hat OpenShift release 1.19.
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 5 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 128 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 96 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 87 more.
High [CVE-2026-27144] no-op interface conversion bypasses overlap checking
no-op interface conversion bypasses overlap checking. Red Hat rates this moderate (CVSS 8.1). Weakness: CWE-440. 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-2026-32282] Root.Chmod can follow symlinks out of the root
Root. Red Hat rates this moderate (CVSS 7.8). Weakness: CWE-367. Affected package(s): rhc, grafana-pcp, dynflow-utils, host-metering, multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1778867753, quay/quay-rhel9:1779922205. Resolved in Red Hat advisory RHSA-2026:11507 — 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 7; Red Hat Enterprise Linux 1.
High [CVE-2026-32589] insecure direct object reference in BlobUpload
insecure direct object reference in BlobUpload. Red Hat rates this important (CVSS 7.4). Weakness: CWE-639. Affected package(s): quay/quay-rhel9:1779922205, quay/quay-rhel8:1779811473, quay/quay-rhel8:1779689392, quay/quay-rhel8:1779822261, openshift/mirror-registry-rhel8:1782177012, quay/quay-rhel9:1779204086. Resolved in Red Hat advisory RHSA-2026:23361 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: mirror registry for Red Hat OpenShift 2.0; Red Hat Quay 3.10; Red Hat Quay 3.12; Red Hat Quay 3.14; and 4 more.
High [CVE-2026-32590] remote code execution using pickle deserialization
remote code execution using pickle deserialization. Red Hat rates this moderate (CVSS 7.1). Weakness: CWE-502. Affected package(s): quay/quay-rhel9:1779922205, quay/quay-rhel8:1779811473, quay/quay-rhel8:1779689392, quay/quay-rhel8:1779822261, openshift/mirror-registry-rhel8:1782177012, quay/quay-rhel9:1779204086. Resolved in Red Hat advisory RHSA-2026:23361 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: mirror registry for Red Hat OpenShift 2.0; Red Hat Quay 3.12; Red Hat Quay 3.14; Red Hat Quay 3.15; and 5 more.
High [CVE-2026-6846] Arbitrary code execution via malformed XCOFF object file processing
Arbitrary code execution via malformed XCOFF object file processing. Red Hat rates this important (CVSS 7.8). Weakness: CWE-122. Affected package(s): binutils-main. Resolved in Red Hat advisory RHSA-2026:33527 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more.
High [CVE-2026-58016] integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"
integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml". Red Hat rates this important (CVSS 7.5). Weakness: CWE-191. 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 6; Red Hat Update Infrastructure 5; Red Hat Discovery 2; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 17 more.
High [CVE-2026-31411] fix crash due to unvalidated vcc pointer in sigd_send()
fix crash due to unvalidated vcc pointer in sigd_send(). Red Hat rates this moderate (CVSS 7.1). Weakness: CWE-822. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:33285 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9.
High [CVE-2026-28390] Denial of Service due to NULL pointer dereference in CMS EnvelopedData processing
Denial of Service due to NULL pointer dereference in CMS EnvelopedData processing. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-476. Affected package(s): openssl-main, rhui5/installer-rhel9:1781525693, openssl, compat-openssl10, rhui5/cds-rhel9:1781525684, discovery/discovery-ui-rhel9:1782166952. Resolved in Red Hat advisory RHSA-2026:35869 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.
High [CVE-2026-34045] Denial of Service and Information Disclosure via unauthenticated HTTP server
Denial of Service and Information Disclosure via unauthenticated HTTP server. Red Hat rates this important (CVSS 8.2). Weakness: CWE-770. Affected package(s): rh-podman-desktop. Resolved in Red Hat advisory RHSA-2026:13867 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Build of Podman Desktop - Tech Preview.
High [CVE-2026-29181] github.com/open-telemetry/opentelemetry-go: OpenTelemetry-Go: Denial of Service via crafted multi-value baggage headers
github.com/open-telemetry/opentelemetry-go: OpenTelemetry-Go: Denial of Service via crafted multi-value baggage headers. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected package(s): multicluster-engine/hypershift-addon-rhel9-operator:1780917881. Resolved in Red Hat advisory RHSA-2026:25271 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2; cert-manager Operator for Red Hat OpenShift; Cert Manager support for Red Hat OpenShift release 1.19; Logging Subsystem for Red Hat OpenShift 6.6.
High [CVE-2026-39373] Memory exhaustion via crafted compressed JWE tokens
Memory exhaustion via crafted compressed JWE tokens. Red Hat rates this low (CVSS 7.5). Weakness: CWE-770. Affected package(s): python3.12-jwcrypto, python-jwcrypto. Resolved in Red Hat advisory RHSA-2026:13508 — 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.
High [CVE-2026-39364] Information disclosure via query parameter manipulation on the development server
Information disclosure via query parameter manipulation on the development server. Red Hat rates this important (CVSS 7.5). Weakness: CWE-472. Affected package(s): ansible-automation-platform-tech-preview/mcp-server-rhel9:1779783248. Resolved in Red Hat advisory RHSA-2026:24866 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Ansible Automation Platform 2.6; Red Hat Build of Keycloak; Red Hat Build of Podman Desktop - Tech Preview; Red Hat OpenShift Container Platform 4; and 1 more.
High [CVE-2026-39363] Information disclosure via WebSocket connection bypasses access control
Information disclosure via WebSocket connection bypasses access control. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1220. Affected package(s): ansible-automation-platform-tech-preview/mcp-server-rhel9:1779783248, automation-platform-ui, automation-gateway. Resolved in Red Hat advisory RHSA-2026:24866 — 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 Build of Keycloak; and 4 more.