Red Hat Linux Security Advisories & CVEs
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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-2026-33195] Active Storage (Rails): Arbitrary file access via path traversal in blob keys
Active Storage (Rails): Arbitrary file access via path traversal in blob keys. Red Hat rates this important (CVSS 8.1). 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 3scale API Management Platform 2.
High [CVE-2026-29111] Arbitrary code execution or Denial of Service via spurious IPC API call data
Arbitrary code execution or Denial of Service via spurious IPC API call data. Red Hat rates this moderate (CVSS 7.8). Weakness: CWE-1287. Affected package(s): systemd, rhosdt/opentelemetry-collector-rhel9:1778056267, rhui5/haproxy-rhel9:1779798164, rhosdt/opentelemetry-rhel9-operator:1778056233, rhui5/rhua-rhel9:1779798222, insights-proxy/insights-proxy-container-rhel9:1780420428. Resolved in Red Hat advisory RHSA-2026:14162 — 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-2026-4601] Private Key Recovery via Missing Cryptographic Step in DSA Signing
Private Key Recovery via Missing Cryptographic Step in DSA Signing. Red Hat rates this important (CVSS 8.7). Weakness: CWE-325. Affected package(s): migration-toolkit-virtualization/mtv-console-plugin-rhel9:1779139872, quay/quay-rhel8:1775169155, quay/quay-rhel8:1775253092, quay/quay-rhel9:1779204086, migration-toolkit-virtualization/mtv-console-plugin-rhel9:1778927462, quay/quay-rhel8:1775169219. Resolved in Red Hat advisory RHSA-2026:6926 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Quay 3.10; Red Hat Quay 3.12; Red Hat Quay 3.15; Red Hat Quay 3.16; and 1 more.
High [CVE-2026-4598] Denial of Service via infinite loop in bnModInverse function with crafted inputs
Denial of Service via infinite loop in bnModInverse function with crafted inputs. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1287. Affected package(s): quay/quay-rhel8:1779811473, migration-toolkit-virtualization/mtv-console-plugin-rhel9:1779139872, quay/quay-rhel8:1779822261, quay/quay-rhel8:1775253092, quay/quay-rhel9:1779204086, migration-toolkit-virtualization/mtv-console-plugin-rhel9:1778927462. Resolved in Red Hat advisory RHSA-2026:23361 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Quay 3.10; Red Hat Quay 3.12; Red Hat Quay 3.15; Red Hat Quay 3.16; and 1 more.
High [CVE-2026-4602] Signature verification bypass via negative exponent handling
Signature verification bypass via negative exponent handling. Red Hat rates this important (CVSS 7.5). Weakness: CWE-681. Affected package(s): migration-toolkit-virtualization/mtv-console-plugin-rhel9:1779139872, quay/quay-rhel8:1775169155, quay/quay-rhel8:1775253092, quay/quay-rhel9:1779204086, migration-toolkit-virtualization/mtv-console-plugin-rhel9:1778927462, quay/quay-rhel8:1775169219. Resolved in Red Hat advisory RHSA-2026:6926 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Quay 3.10; Red Hat Quay 3.12; Red Hat Quay 3.15; Red Hat Quay 3.16; and 1 more.
High [CVE-2026-4600] Cryptographic signature forgery via malicious DSA domain parameters
Cryptographic signature forgery via malicious DSA domain parameters. Red Hat rates this important (CVSS 8.2). Weakness: CWE-347. Affected package(s): migration-toolkit-virtualization/mtv-console-plugin-rhel9:1779139872, quay/quay-rhel8:1775169155, quay/quay-rhel8:1775253092, quay/quay-rhel9:1779204086, migration-toolkit-virtualization/mtv-console-plugin-rhel9:1778927462, quay/quay-rhel8:1775169219. Resolved in Red Hat advisory RHSA-2026:6926 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Quay 3.10; Red Hat Quay 3.12; Red Hat Quay 3.15; Red Hat Quay 3.16; and 1 more.
High [CVE-2026-4680] Use after free in FedCM
Use after free in FedCM. Red Hat rates this important (CVSS 8.8). 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.
High [CVE-2026-33236] Arbitrary file overwrite and creation via path traversal in XML index files
Arbitrary file overwrite and creation via path traversal in XML index files. Red Hat rates this important (CVSS 8.1). Weakness: CWE-22. Affected package(s): rhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9:1778263054, rhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9:1776319185, rhoai/odh-pipeline-runtime-pytorch-llmcompressor-cuda-py312-rhel9:1776243238, 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-2026-33231] Denial of Service via unauthenticated remote shutdown
Denial of Service via unauthenticated remote shutdown. Red Hat rates this important (CVSS 7.5). Weakness: CWE-306. Affected package(s): rhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9:1778263054, rhoai/odh-pipeline-runtime-pytorch-llmcompressor-cuda-py312-rhel9:1780069222, rhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9:1780069226, 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-2026-33180] Information disclosure and potential impersonation via HTTP redirects sending sensitive headers
Information disclosure and potential impersonation via HTTP redirects sending sensitive headers. Red Hat rates this important (CVSS 8.2). Weakness: CWE-201. 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 Fuse 7.
High [CVE-2026-33154] Arbitrary code execution via Server-Side Template Injection
Arbitrary code execution via Server-Side Template Injection. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-917. Affected package(s): ansible-automation-platform, automation-controller. Resolved in Red Hat advisory RHSA-2026:34160 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9.
High [CVE-2026-33150] Arbitrary code execution via use-after-free in io_uring subsystem
Arbitrary code execution via use-after-free in io_uring subsystem. 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 8.
High [CVE-2026-32710] Remote Code Execution or Denial of Service via JSON_SCHEMA_VALID() function vulnerability
Remote Code Execution or Denial of Service via JSON_SCHEMA_VALID() function vulnerability. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-120. Affected package(s): mariadb11.8, galera, mariadb:11.8. Resolved in Red Hat advisory RHSA-2026:19182 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1.
High [CVE-2026-4519] Command-line option injection in webbrowser.open() via crafted URLs
Command-line option injection in webbrowser.open() via crafted URLs. Red Hat rates this important (CVSS 7.1). Weakness: CWE-88. Affected package(s): python3.11, rhpam, discovery/discovery-server-rhel9:1775668717, python3.9, python3.12, rhaiis/vllm-cuda-rhel9:1778274666. Resolved in Red Hat advisory RHSA-2026:10140 — 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 8.2 Advanced Update Support; and 18 more.
High [CVE-2026-32305] mTLS bypass allows unauthorized service access via fragmented ClientHello.
mTLS bypass allows unauthorized service access via fragmented ClientHello.. Red Hat rates this important (CVSS 8.3). Weakness: CWE-179. Affected package(s): devspaces/traefik-rhel9:1779786779, devspaces/traefik-rhel9:1776718585. Resolved in Red Hat advisory RHSA-2026:21772 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift Dev Spaces 3.27; Red Hat OpenShift Dev Spaces 3.28; Red Hat OpenShift GitOps.
High [CVE-2026-33036] Denial of Service via XML entity expansion bypass
Denial of Service via XML entity expansion bypass. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-776. Affected package(s): odf4/ocs-client-console-rhel9:1778050558, odf4/mcg-core-rhel9:1776403991, odf4/ocs-client-rhel9-operator:1778049818, odf4/odf-cloudnative-pg-rhel9-operator:1776406131, odf4/odf-csi-addons-sidecar-rhel9:1778050048, odf4/odf-multicluster-console-rhel9:1778078096. Resolved in Red Hat advisory RHSA-2026:7110 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-32875] Denial of Service via large indent parameter in JSON serialization
Denial of Service via large indent parameter in JSON serialization. Red Hat rates this important (CVSS 7.5). Weakness: CWE-190. 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-2026-32874] Denial of Service due to memory leak when parsing large integers
Denial of Service due to memory leak when parsing large integers. Red Hat rates this important (CVSS 7.5). Weakness: CWE-772. 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-2026-23536] Unauthenticated Arbitrary File Read
Unauthenticated Arbitrary File Read. Red Hat rates this important (CVSS 7.5). 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 OpenShift AI (RHOAI).
High [CVE-2026-23538] Resource exhaustion via WebSocket endpoint
Resource exhaustion via WebSocket endpoint. 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.