Red Hat Linux Security Advisories & CVEs
4892 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-2026-3916] Out of bounds read in Web Speech
Out of bounds read in Web Speech. Red Hat rates this important (CVSS 8.8). 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-2026-3915] Heap buffer overflow in WebML
Heap buffer overflow in WebML. Red Hat rates this important (CVSS 8.8). 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-2026-3917] Use after free in Agents
Use after free in Agents. Red Hat rates this important (CVSS 8.8). 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-2026-3920] Out of bounds memory access in WebML
Out of bounds memory access in WebML. Red Hat rates this important (CVSS 8.8). 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-2026-3922] Use after free in MediaStream
Use after free in MediaStream. Red Hat rates this important (CVSS 8.8). 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-2026-3924] Use after free in WindowDialog
Use after free in WindowDialog. Red Hat rates this important (CVSS 8.8). 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-2026-28693] Out-of-bounds read or write due to integer overflow in DIB coder
Out-of-bounds read or write due to integer overflow in DIB coder. Red Hat rates this important (CVSS 8.1). Weakness: CWE-190. Affected package(s): ImageMagick. Resolved in Red Hat advisory RHSA-2026:6713 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle Support.
High [CVE-2026-28691] Denial of Service via uninitialized pointer dereference in JBIG decoder
Denial of Service via uninitialized pointer dereference in JBIG decoder. Red Hat rates this important (CVSS 7.5). Weakness: CWE-824. Affected package(s): ImageMagick. Resolved in Red Hat advisory RHSA-2026:6713 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle Support.
High [CVE-2026-25960] Server-Side Request Forgery bypass via inconsistent URL parsing
Server-Side Request Forgery bypass via inconsistent URL parsing. Red Hat rates this important (CVSS 7.1). Weakness: CWE-474. Affected package(s): rhoai/odh-vllm-gaudi-rhel9:1780069069. Resolved in Red Hat advisory RHSA-2026:24977 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-0846] Arbitrary file read via improper path validation in `filestring()` function
Arbitrary file read via improper path validation in `filestring()` function. Red Hat rates this important (CVSS 7.5). Weakness: CWE-22. Affected package(s): rhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9:1778263054, rhoai/odh-llama-stack-core-rhel9:1775144403, rhoai/odh-pipeline-runtime-pytorch-llmcompressor-cuda-py312-rhel9:1778262893. Resolved in Red Hat advisory RHSA-2026:19712 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3; OpenShift Lightspeed; Red Hat Ansible Automation Platform 2; and 1 more.
High [CVE-2026-3842] missing mapped-length guard after cpu_physical_memory_map causes host OOB write
missing mapped-length guard after cpu_physical_memory_map causes host OOB write. Red Hat rates this important (CVSS 7.8). 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-2026-29786] hardlink path traversal via drive-relative linkpath
hardlink path traversal via drive-relative linkpath. Red Hat rates this important (CVSS 8.6). 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-2026-24281] Impersonation of servers or clients via reverse DNS spoofing
Impersonation of servers or clients via reverse DNS spoofing. Red Hat rates this important (CVSS 7.4). Weakness: CWE-295. Affected package(s): zookeeper, rhoai/odh-modelmesh-rhel9:1776756834. Resolved in Red Hat advisory RHSA-2026:14276 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat build of Debezium 2; Red Hat build of Debezium 3; Red Hat Fuse 7; and 3 more.
High [CVE-2026-30827] Denial of Service for IPv4 clients due to incorrect IPv6 subnet masking
Denial of Service for IPv4 clients due to incorrect IPv6 subnet masking. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-1389. Affected package(s): ansible-automation-platform-tech-preview/mcp-server-rhel9:1774268173, devspaces/openvsx-rhel9:1779528224. Resolved in Red Hat advisory RHSA-2026:6309 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-25679] Incorrect parsing of IPv6 host literals in net/url
Incorrect parsing of IPv6 host literals in net/url. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1286. Affected package(s): openshift4/ose-csi-livenessprobe-rhel8:1776999947, openshift-service-mesh/istio-cni-rhel8:1777374598, openshift4/ose-csi-external-snapshotter-rhel8:1776999951, openshift4/ose-multus-route-override-cni-rhel8:1777001628, openshift4/ose-oauth-server-rhel9:1779253952, openshift4/ose-tests:1777002345. Resolved in Red Hat advisory RHSA-2026:11749 — 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 4.12; and 148 more.
High [CVE-2026-27137] Incorrect enforcement of email constraints in crypto/x509
Incorrect enforcement of email constraints in crypto/x509. Red Hat rates this important (CVSS 7.5). Weakness: CWE-295. Affected package(s): rhc-worker-playbook, golang1, golang, openshift-gitops, rh-lightspeed-runtimes/runtimes-inventory-rhel9-operator:1.0.2, delve. Resolved in Red Hat advisory RHSA-2026:28047 — 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 9.6 Extended Update Support; Red Hat OpenStack Platform 17.1 for RHEL 9; RHEM 1.0 for RHEL 9; and 71 more.
High [CVE-2026-29063] Arbitrary code execution via Prototype Pollution
Arbitrary code execution via Prototype Pollution. Red Hat rates this important (CVSS 8.8). Weakness: CWE-915. Affected package(s): openshift-service-mesh/kiali-ossmc-rhel9:1776151134, cluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996, rhoai/odh-mod-arch-gen-ai-rhel9:1778473763, rhoai/odh-dashboard-rhel9:1779189627, multicluster-engine/console-mce-rhel9:1776223790, openshift4/ose-networking-console-plugin-rhel9:1778517109. Resolved in Red Hat advisory RHSA-2026:9848 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Management for Kubernetes 2.15; Red Hat Advanced Cluster Security for Kubernetes 4.10; Red Hat Advanced Cluster Security for Kubernetes 4.8; and 50 more.
High [CVE-2026-29091] Remote Code Execution via insecure callback function implementation
Remote Code Execution via insecure callback function implementation. Red Hat rates this important (CVSS 8.1). Weakness: CWE-94. 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: Logging Subsystem for Red Hat OpenShift.
High [CVE-2026-29089] Arbitrary code execution via malicious functions in user-writable schemas during extension upgrade
Arbitrary code execution via malicious functions in user-writable schemas during extension upgrade. Red Hat rates this important (CVSS 8.8). Weakness: CWE-427. 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-2026-26017] DNS access control bypass due to plugin execution order flaw
DNS access control bypass due to plugin execution order flaw. Red Hat rates this important (CVSS 7.7). Weakness: CWE-367. Affected package(s): rhacm2/lighthouse-coredns-rhel9:1774086225, rhacm2/lighthouse-agent-rhel9:1780204232, rhacm2/lighthouse-coredns-rhel9:1780204249. Resolved in Red Hat advisory RHSA-2026:8151 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.13; Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Management for Kubernetes 2.15; Red Hat Connectivity Link 1.