Red Hat Linux Security Advisories & Vulnerabilities
16004 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited sources checked less often
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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
High [CVE-2026-41567] Moby/Docker Engine: Arbitrary Code Execution via malicious container image and compressed archive upload
Moby/Docker Engine: Arbitrary Code Execution via malicious container image and compressed archive upload. Red Hat rates this important (CVSS 7.5). Weakness: CWE-427. 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 Openshift Data Foundation 4.22; OpenShift Lightspeed; OpenShift Source-to-Image (S2I); Red Hat Advanced Cluster Management for Kubernetes 2; and 20 more.
Low [CVE-2026-9088] Information disclosure due to user profile permission bypass
Information disclosure due to user profile permission bypass. Red Hat rates this low (CVSS 2.7). Weakness: CWE-1220. Affected package(s): rhbk/keycloak-operator-bundle:26.4.13, rhbk/keycloak-rhel9-operator:26.4, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9:26.4, rhbk/keycloak-operator-bundle:26.6.3, rhbk/keycloak-rhel9:26.6. Resolved in Red Hat advisory RHSA-2026:30049 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Critical [CVE-2026-41283] Arbitrary Remote Code Execution via exposed API endpoints
Arbitrary Remote Code Execution via exposed API endpoints. Red Hat rates this important (CVSS 9.9). Weakness: CWE-749. 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-2026-50589] Denial of Service via crafted JSON string
Denial of Service via crafted JSON string. Red Hat rates this important (CVSS 7.5). Weakness: CWE-502. 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 Container Platform 4.
High [CVE-2026-11774] integer overflow in SASL packet length bypasses size limit leading to heap buffer overflow
integer overflow in SASL packet length bypasses size limit leading to heap buffer overflow. Red Hat rates this important (CVSS 7.6). Weakness: CWE-190. 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 Directory Server 11.5 E4S for RHEL 8; Red Hat Directory Server 11.7 E4S for RHEL 8; Red Hat Directory Server 11.9 for RHEL 8; Red Hat Directory Server 12.2 E4S for RHEL 9; and 13 more.
High [CVE-2026-44393] OpenStack oslo.messaging: Man-in-the-middle attack via improper TLS hostname verification
OpenStack oslo.messaging: Man-in-the-middle attack via improper TLS hostname verification. Red Hat rates this important (CVSS 7.4). Weakness: CWE-295. 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 OpenShift Container Platform 4; Red Hat OpenStack Platform 16.2; Red Hat OpenStack Platform 17.1; Red Hat OpenStack Platform 18.0.
High [CVE-2026-47774] HTTP/2 Remote Denial of Service via HPACK compression bomb and Slowloris-style attack
HTTP/2 Remote Denial of Service via HPACK compression bomb and Slowloris-style attack. Red Hat rates this important (CVSS 7.5). Weakness: CWE-409. Affected package(s): openshift-service-mesh/istio-proxyv2-rhel9:1781069908, openshift-service-mesh/istio-proxyv2-rhel9:1781070158, openshift-service-mesh/istio-proxyv2-rhel9:1781070967, openshift-service-mesh/proxyv2-rhel9:1781604724, openshift-service-mesh/istio-proxyv2-rhel9:1781094520. Resolved in Red Hat advisory RHSA-2026:26210 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift Service Mesh 2.6; Red Hat OpenShift Service Mesh 3.1; Red Hat OpenShift Service Mesh 3.2; Red Hat OpenShift Service Mesh 3.3; and 1 more.
Medium [CVE-2026-45287] Denial of Service due to file descriptor leak
Denial of Service due to file descriptor leak. Red Hat rates this low (CVSS 4). Weakness: CWE-772. Affected package(s): buildah-main, skopeo-main, kubernetes1, containers-common-main, cosign-main, caddy-main. Resolved in Red Hat advisory RHSA-2026:23263 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-10805] Networkmanager: networkmanager: local privilege escalation via malformed mud urls in dhclient backend
A flaw was found in NetworkManager. This local privilege escalation vulnerability exists in NetworkManager's dhclient backend when processing malformed Manufacturer Usage Description (MUD) URLs. A local user can exploit this flaw to escalate privileges by triggering a script via a crafted MUD URL, provided an administrator has explicitly configured NetworkManager to use dhclient. This issue does not affect default configurations of NetworkManager. Red Hat severity: Moderate — CVSS 6.7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H). Weakness: CWE-78. Affected Red Hat products: Red Hat Enterprise Linux 8; 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; Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Multicluster Engine for Kubernetes; Red Hat JBoss Enterprise Application Platform Expansion Pack; Red Hat OpenShift Container Platform 4.
Medium [CVE-2026-50219] Use-after-free vulnerability due to improper handler call depth tracking
Use-after-free vulnerability due to improper handler call depth tracking. Red Hat rates this moderate (CVSS 4.9). Weakness: CWE-911. Affected package(s): expat-main. Resolved in Red Hat advisory RHSA-2026:30647 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-5241] Arbitrary code execution due to overridden trust_remote_code setting
Arbitrary code execution due to overridden trust_remote_code setting. Red Hat rates this important (CVSS 7.7). Weakness: CWE-829. Affected package(s): rhoai/odh-th06-cuda130-torch210-py312-rhel9:1782136276, rhoai/odh-training-rocm62-torch25-py311-rhel9:1782132236, rhoai/odh-th06-cpu-torch210-py312-rhel9:1782135464, rhoai/odh-training-cuda128-torch29-py312-rhel9:1782132240, rhoai/odh-th06-rocm64-torch291-py312-rhel9:1782135346, rhoai/odh-training-cuda124-torch25-py311-rhel9:1782132207. Resolved in Red Hat advisory RHSA-2026:34456 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.4; Red Hat AI Inference Server; Red Hat Ansible Automation Platform 2; and 3 more.
High [CVE-2026-4035] Sensitive credential exfiltration via environment variable resolution in AI Gateway secrets
Sensitive credential exfiltration via environment variable resolution in AI Gateway secrets. Red Hat rates this important (CVSS 7.7). 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 OpenShift AI (RHOAI).
High [CVE-2026-49975] Remote Denial of Service via compression bomb and Slowloris-style attack
Remote Denial of Service via compression bomb and Slowloris-style attack. Red Hat rates this important (CVSS 7.5). Weakness: CWE-409. Affected package(s): jbcs-httpd24-httpd, mod_http2, jbcs-httpd24-mod_http2, httpd-main, httpd:2.4, openshift-service-mesh/proxyv2-rhel9:1781604724. Resolved in Red Hat advisory RHSA-2026:27200 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: JBoss Core Services for RHEL 8; JBoss Core Services on RHEL 7; 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 11 more.
High [CVE-2026-46244] Fix IPv6 inner_thoff desync
Fix IPv6 inner_thoff desync. Red Hat rates this important (CVSS 7.3). Weakness: CWE-823. 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 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support.
Critical [CVE-2026-10911] Insufficient validation of untrusted input in Media
Insufficient validation of untrusted input in Media. Red Hat rates this important (CVSS 9). Weakness: CWE-1173. 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-2026-10894] Use after free in Printing
Use after free in Printing. Red Hat rates this important (CVSS 9). 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-2026-10989] Inappropriate implementation in V8
Inappropriate implementation in V8. 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-2026-10931] Use after free in FileSystem
Use after free in FileSystem. 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-2026-10892] Out of bounds write in GPU
Out of bounds write in GPU. 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-2026-10918] Use after free in Viz
Use after free in Viz. Red Hat rates this important (CVSS 9). 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.
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