Red Hat Linux Security Advisories & CVEs
5245 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 Linux 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 Linux advisories
Medium [CVE-2026-45149] Denial of Service due to excessive memory allocation when expanding large numeric ranges
Denial of Service due to excessive memory allocation when expanding large numeric ranges. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-770. Affected package(s): nodejs20-main, rust-main, llvm21-main, nodejs26-main, nodejs25-main, yarnpkg-main. Resolved in Red Hat advisory RHSA-2026:22380 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Critical [CVE-2026-41565] Stack buffer overflow allows arbitrary code execution via a crafted authentication tag.
Stack buffer overflow allows arbitrary code execution via a crafted authentication tag.. Red Hat rates this important (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.
High [CVE-2026-45292] Denial of Service due to unbounded memory allocation when parsing oversized baggage
Denial of Service due to unbounded memory allocation when parsing oversized baggage. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected package(s): offline-knowledge-portal/rhokp-rhel9:1782239370. Resolved in Red Hat advisory RHSA-2026:28573 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Offline Knowledge Portal 1.2.7; Red Hat OpenShift Dev Spaces 3.29; OpenShift Serverless; Red Hat OpenShift AI (RHOAI); and 8 more.
High [CVE-2026-44477] Metrics exporter allows privilege escalation to PostgreSQL superuser and OS RCE
Metrics exporter allows privilege escalation to PostgreSQL superuser and OS RCE. Red Hat rates this important (CVSS 8.8). Weakness: CWE-250. 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 Data Foundation 4.
High [CVE-2026-48526] Authentication bypass due to forged JSON Web Tokens
Authentication bypass due to forged JSON Web Tokens. Red Hat rates this important (CVSS 7.4). Weakness: CWE-347. Affected package(s): ansible-automation-platform, quay/quay-rhel8:1782487717, python3.12-pyjwt, quay/quay-rhel8:1781878070, fence-agents, quay/quay-rhel8:1781937357. Resolved in Red Hat advisory RHSA-2026:35837 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Ansible Automation Platform 2.6 for RHEL 9; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; and 20 more.
High [CVE-2026-9804] VMExport directory symlink escape enables exporter pod file read
VMExport directory symlink escape enables exporter pod file read. Red Hat rates this important (CVSS 7.7). Weakness: CWE-59. Affected package(s): container-native-virtualization/virt-exportserver-rhel9:1781757410, container-native-virtualization/virt-exportserver-rhel9:1781590993, container-native-virtualization/virt-exportserver-rhel9:1781928221, container-native-virtualization/virt-exportserver-rhel9:1782012918, container-native-virtualization/virt-exportserver-rhel9:1781838712. Resolved in Red Hat advisory RHSA-2026:28002 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Container Native Virtualization 4.17; Red Hat Container Native Virtualization 4.18; Red Hat Container Native Virtualization 4.19; Red Hat Container Native Virtualization 4.20; and 2 more.
High [CVE-2026-44604] Command injection in rpmuncompress doUntar() via unescaped archive top-level directory name in popen() shell command
Command injection in rpmuncompress doUntar() via unescaped archive top-level directory name in popen() shell command. Red Hat rates this moderate (CVSS 7). Weakness: CWE-78. Affected package(s): rpm-main. Resolved in Red Hat advisory RHSA-2026:28491 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-9795] Privilege escalation via improper scope mapping enforcement
Privilege escalation via improper scope mapping enforcement. Red Hat rates this important (CVSS 7.3). Weakness: CWE-266. Affected package(s): rhbk/keycloak-operator-bundle:26.4.13, rhbk/keycloak-rhel9-operator:26.4, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9:26.6, rhbk/keycloak-rhel9:26.4, rhbk/keycloak-operator-bundle:26.6.4. Resolved in Red Hat advisory RHSA-2026:30049 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat build of Keycloak 26.4; Red Hat build of Keycloak 26.6.
High [CVE-2026-46116] defensively unhash xfrm_state lists in __xfrm_state_delete
defensively unhash xfrm_state lists in __xfrm_state_delete. Red Hat rates this important (CVSS 7). Weakness: CWE-763. 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 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; and 7 more.
High [CVE-2026-46181] Fix mis-use of RCU in mlx4_srq_event()
Fix mis-use of RCU in mlx4_srq_event(). Red Hat rates this important (CVSS 7). Weakness: CWE-366. Affected package(s): kernel-rt, kernel. Resolved in Red Hat advisory RHSA-2026:25120 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: 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; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; and 6 more.
High [CVE-2026-46152] drop stray 'static' from fast-RX rx_result
drop stray 'static' from fast-RX rx_result. Red Hat rates this important (CVSS 7). Weakness: CWE-1058. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:27288 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux AppStream (v. 10); Red Hat Enterprise Linux AppStream E4S (v.9.4); Red Hat Enterprise Linux AppStream EUS (v.9.6); Red Hat Enterprise Linux AppStream (v. 9); and 23 more.
High [CVE-2026-46227] revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL
revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL. Red Hat rates this important (CVSS 7). Weakness: CWE-367. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:34094 — 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; and 6 more.
High [CVE-2026-46117] Remove user triggerable WARN_ON() in mana_ib_create_qp_rss()
Remove user triggerable WARN_ON() in mana_ib_create_qp_rss(). Red Hat rates this important (CVSS 7). Weakness: CWE-1288. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:30129 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8.
High [CVE-2026-46145] Validate rx_hash_key_len
Validate rx_hash_key_len. Red Hat rates this important (CVSS 7). Weakness: CWE-787. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:27354 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.
High [CVE-2026-46189] Fix double free on pvrdma_alloc_ucontext() error path
Fix double free on pvrdma_alloc_ucontext() error path. Red Hat rates this important (CVSS 7). Weakness: CWE-1341. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:30848 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux AppStream (v. 10); Red Hat Enterprise Linux AppStream E4S (v.9.2); Red Hat Enterprise Linux AppStream E4S (v.9.4); Red Hat Enterprise Linux AppStream EUS (v.9.6); and 34 more.
High [CVE-2026-46176] Fix error path fall-through in mlx5_ib_dev_res_srq_init()
Fix error path fall-through in mlx5_ib_dev_res_srq_init(). Red Hat rates this important (CVSS 7). Weakness: CWE-825. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:34094 — 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.
High [CVE-2026-46215] Set old handle to NULL before prime swap in change_handle
Set old handle to NULL before prime swap in change_handle. 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.
High [CVE-2026-46173] prevent preemption of oopsing TASK_DEAD task
prevent preemption of oopsing TASK_DEAD task. Red Hat rates this moderate (CVSS 7). Weakness: CWE-1341. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:27288 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1.
High [CVE-2026-46209] Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()
Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs(). Red Hat rates this moderate (CVSS 7.1). Weakness: CWE-190. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:34911 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1.
High [CVE-2026-46166] use safe list iteration in radar detect work
use safe list iteration in radar detect work. Red Hat rates this important (CVSS 7). Weakness: CWE-825. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:27288 — 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.