Red Hat Linux Security Advisories & Vulnerabilities
16039 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited sources checked less often
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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, so keep the system patched. This is the release's advisory history, not a per-package scan.
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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
Low [CVE-2026-35388] Low integrity impact from unconfirmed proxy-mode multiplexing sessions
Low integrity impact from unconfirmed proxy-mode multiplexing sessions. Red Hat rates this low (CVSS 2.2). Weakness: CWE-306. Affected package(s): openssh, rhaiis/model-opt-cuda-rhel9:1780681984, discovery/discovery-ui-rhel9:1778156756, rhui5/rhua-rhel9:1779798222, discovery/discovery-server-rhel9:1778101579, rhui5/installer-rhel9:1779798165. Resolved in Red Hat advisory RHSA-2026:14937 — 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.
Low [CVE-2026-35387] Information disclosure due to unintended cryptographic algorithm usage
Information disclosure due to unintended cryptographic algorithm usage. Red Hat rates this low (CVSS 3.1). Weakness: CWE-115. Affected package(s): openssh, rhaiis/model-opt-cuda-rhel9:1780681984, rhui5/rhua-rhel9:1779798222, discovery/discovery-server-rhel9:1778101579, rhui5/installer-rhel9:1779798165. Resolved in Red Hat advisory RHSA-2026:14937 — 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.
Low [CVE-2026-35386] Arbitrary command execution via shell metacharacters in username
Arbitrary command execution via shell metacharacters in username. Red Hat rates this low (CVSS 3.6). Weakness: CWE-78. Affected package(s): openssh, rhaiis/model-opt-cuda-rhel9:1780681984, rhui5/rhua-rhel9:1779798222, discovery/discovery-server-rhel9:1778101579, rhui5/installer-rhel9:1779798165. Resolved in Red Hat advisory RHSA-2026:14937 — 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.
Critical [CVE-2026-34875] Mbed TLS and TF-PSA-Crypto: Arbitrary code execution due to buffer overflow in FFDH key export
Mbed TLS and TF-PSA-Crypto: Arbitrary code execution due to buffer overflow in FFDH key export. Red Hat rates this critical (CVSS 9.8). Weakness: CWE-120. 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.
Critical [CVE-2026-34873] Client impersonation during TLS 1.3 session resumption
Client impersonation during TLS 1.3 session resumption. Red Hat rates this critical (CVSS 10). Weakness: CWE-290. 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-2026-34545] Remote code execution via crafted EXR files
Remote code execution via crafted EXR files. Red Hat rates this important (CVSS 8.8). Weakness: CWE-1284. 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-2026-27489] Information Disclosure via Path Traversal Vulnerability
Information Disclosure via Path Traversal Vulnerability. Red Hat rates this important (CVSS 8.6). Weakness: CWE-22. Affected package(s): rhoai/odh-pipeline-runtime-pytorch-cuda-py312-rhel9:1780078429, rhoai/odh-pipeline-runtime-tensorflow-rocm-py312-rhel9:1780417775, rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9:1780078388, rhoai/odh-workbench-jupyter-trustyai-cpu-py312-rhel9:1780069222, rhoai/odh-pipeline-runtime-pytorch-rocm-py312-rhel9:1780078632, rhoai/odh-pipeline-runtime-datascience-cpu-py312-rhel9:1780078312. 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 OpenShift AI (RHOAI).
High [CVE-2026-35092] Denial of Service via integer overflow in join message validation
Denial of Service via integer overflow in join message validation. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-190. Affected package(s): corosync. Resolved in Red Hat advisory RHSA-2026:19043 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 9 more.
High [CVE-2026-35091] Denial of Service and information disclosure via crafted UDP packet
Denial of Service and information disclosure via crafted UDP packet. Red Hat rates this moderate (CVSS 8.2). Weakness: CWE-253. Affected package(s): corosync. Resolved in Red Hat advisory RHSA-2026:19043 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 9 more.
High [CVE-2026-23401] Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling
Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling. Red Hat rates this important (CVSS 8.1). Weakness: CWE-416. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:13936 — 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 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Telecommunications Update Service; Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions; and 6 more.
High [CVE-2026-35093] Unauthorized code execution and information disclosure through Lua bytecode plugins
Unauthorized code execution and information disclosure through Lua bytecode plugins. Red Hat rates this important (CVSS 8.8). 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: Red Hat Enterprise Linux.
High [CVE-2026-34872] Mbed TLS and TF-PSA-Crypto: Shared secret manipulation via improper FFDH input validation
Mbed TLS and TF-PSA-Crypto: Shared secret manipulation via improper FFDH input validation. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1287. 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.
Critical [CVE-2026-5272] Heap buffer overflow in GPU
Heap buffer overflow in GPU. Red Hat rates this important (CVSS 9.6). Weakness: CWE-120. 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.
Critical [CVE-2026-5284] Use after free in Dawn
Use after free in Dawn. Red Hat rates this important (CVSS 9.6). 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.
Critical [CVE-2026-5278] Use after free in Web MIDI
Use after free in Web MIDI. Red Hat rates this important (CVSS 9.6). 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.
Critical [CVE-2026-5285] Use after free in WebGL
Use after free in WebGL. Red Hat rates this important (CVSS 9.6). 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.
Critical [CVE-2026-5274] Integer overflow in Codecs
Integer overflow in Codecs. Red Hat rates this important (CVSS 9.6). 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.
Critical [CVE-2026-5275] Heap buffer overflow in ANGLE
Heap buffer overflow in ANGLE. Red Hat rates this important (CVSS 9.6). 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.
Critical [CVE-2026-5273] Use after free in CSS
Use after free in CSS. Red Hat rates this important (CVSS 9.6). 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.
Critical [CVE-2026-5277] Integer overflow in ANGLE
Integer overflow in ANGLE. Red Hat rates this important (CVSS 9). 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.
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