Red Hat Linux Security Advisories & CVEs
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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 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
Medium [CVE-2026-62899] .NET:.NET Core:.NET Security Feature Bypass Vulnerability
Inconsistent interpretation of http requests ('http request/response smuggling') in.NET allows an unauthorized attacker to bypass a security feature over a network. This Moderate impact flaw in System. Net.HttpListener on Red Hat platforms running.NET Core allows for a security feature bypass. The vulnerability arises from incorrect parsing of the Content-Length header, potentially affecting applications that utilize HttpListener to process HTTP requests. Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N). Weakness: CWE-444. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Hardened Images; Red Hat OpenShift Dev Spaces. Red Hat fixing advisory: RHSA-2026:54541, RHSA-2026:54590, RHSA-2026:55858, RHSA-2026:58566, RHSA-2026:58567, RHSA-2026:54538, RHSA-2026:54542, RHSA-2026:54550, RHSA-2026:54574, RHSA-2026:55856, RHSA-2026:55857, RHSA-2026:58568, RHSA-2026:58569, RHSA-2026:58570, RHSA-2026:44914, RHSA-2026:55142, RHSA-2026:55405. Affected products named by the advisory: Red Hat package: dotnet8.0; Red Hat package: dotnet9.0; Red Hat package: dotnet10.0.
Medium [CVE-2026-62900] .NET:.NET Information Disclosure Vulnerability
Improper removal of sensitive information before storage or transfer in.NET allows an unauthorized attacker to disclose information over a network. Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N). Weakness: CWE-212. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Hardened Images; Red Hat OpenShift Dev Spaces. Red Hat fixing advisory: RHSA-2026:54541, RHSA-2026:54590, RHSA-2026:55858, RHSA-2026:58566, RHSA-2026:58567, RHSA-2026:54538, RHSA-2026:54542, RHSA-2026:54550, RHSA-2026:54574, RHSA-2026:55856, RHSA-2026:55857, RHSA-2026:58568, RHSA-2026:58569, RHSA-2026:58570, RHSA-2026:44914, RHSA-2026:55142, RHSA-2026:55405. Affected products named by the advisory: Red Hat package: dotnet8.0; Red Hat package: dotnet9.0; Red Hat package: dotnet10.0.
Low [CVE-2026-73281] ssh-agent allows remote execution of local operations
In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the [email protected] extension. This could enable a remote attacker to add PKCS#11 tokens or utilize keys with destination restrictions, bypassing intended security controls. Red Hat has determined that this vulnerability has limited impact. Exploitation requires an authenticated SSH session with agent forwarding enabled and the agent in a locked state. Red Hat Enterprise Linux 6, 7, 8, and RHEL 9 through 9.6 ship OpenSSH versions prior to 8.9 and are not affected. Red Hat may apply this fix in a future update for affected products. Red Hat severity: Low — CVSS 3.5 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N). Weakness: CWE-266. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Hardened Images; Red Hat Update Infrastructure 5; Red Hat OpenShift Container Platform 4. Red Hat fixing advisory: RHSA-2026:69129, RHSA-2026:69130, RHSA-2026:70719, RHSA-2026:71603. Affected products named by the advisory: Red Hat package: openssh.
Low [CVE-2026-73071] Denial of Service via Use-After-Free in JSON Decoding
Vim is an open source, command line text editor. From 9.2.0511 until 9.2.0844, json_decode_item() in src/json.c can retain a stale pointer after json_decode_string() invokes channel_fill() to refill and free the current buffer, causing the error path to read freed memory instead of reader->js_buf + reader->js_used when an invalid JSON string spans buffers. This issue is fixed in version 9.2.0844. A flaw was found in Vim. This can lead to the program attempting to read freed memory, potentially resulting in a denial of service for a local user. Fedora and Hummingbird already ship 9.2.920, which is past the fix. No Red Hat product is affected by this vulnerability. Red Hat severity: Low — CVSS 3.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-416. Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Hardened Images; Red Hat OpenShift Container Platform 4 as not affected.
Critical [CVE-2026-18948] Unsafe dill deserialization of registry-stored UDFs — RCE on feature server and registry server
Unsafe dill deserialization of registry-stored UDFs — RCE on feature server and registry server. Red Hat rates this critical (CVSS 9.9). Red Hat lists fixing advisory RHSA-2026:53262 with package rhoai/odh-feature-server-rhel9:1787068065, rhoai/odh-feature-server-rhel9:1786110051, rhoai/odh-feature-server-rhel9:1786110033, rhoai/odh-feature-server-rhel9:1786107278. Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.4.
Critical [CVE-2026-14450] Privilege escalation via forged HTTP headers due to missing authentication
Privilege escalation via forged HTTP headers due to missing authentication. Red Hat rates this important (CVSS 9.9). Weakness: CWE-290. Red Hat lists fixing advisory RHSA-2026:53262 with package rhoai/odh-maas-api-rhel9:1785850409, rhoai/odh-maas-api-rhel9:1787153683. Affected product named by the advisory: Red Hat OpenShift AI 3.4.
Critical [CVE-2026-66801] shared Kafka gh-spec topic Write ACL plus spoofable CloudEvent source enables fleet-wide cluster-admin from any compromised managed hub
shared Kafka gh-spec topic Write ACL plus spoofable CloudEvent source enables fleet-wide cluster-admin from any compromised managed hub. Red Hat rates this critical (CVSS 9.9). Weakness: CWE-290. Red Hat lists fixing advisory RHSA-2026:54577 with package multicluster-globalhub/multicluster-globalhub-rhel9-operator:1786621416, multicluster-globalhub/multicluster-globalhub-rhel9-operator:1786071343, multicluster-globalhub/multicluster-globalhub-rhel9-operator:1786067967, multicluster-globalhub/multicluster-globalhub-rhel9-operator:1785773214.
High [CVE-2026-66806] TLS verification disabled when sending hub pull-secret to console.redhat.com
Off-by-one error in Microsoft Office Word allows an unauthorized attacker to disclose information locally. A flaw was found in console. When the `HTTPS_PROXY` environment variable is not configured, the console component fails to verify Transport Layer Security (TLS) certificates for outbound connections. A network-positioned attacker (Man-in-the-Middle) can exploit this vulnerability to intercept the cluster pull-secret while it is being sent to console.redhat.com. This pull-secret is a critical credential that provides access to Red Hat container registries and cloud services, potentially leading to unauthorized access and sensitive information disclosure. This allows a network-positioned attacker to intercept the cluster pull-secret, a high-value credential, due to the lack of server certificate validation. Red Hat severity: Important — CVSS 7.4 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N). Weakness: CWE-295. Affected Red Hat products: multicluster engine for Kubernetes 2.6; Red Hat Advanced Cluster Management for Kubernetes 2.11. Red Hat fixing advisory: RHSA-2026:59579, RHSA-2026:60387.
High [CVE-2026-72913] Arbitrary Code Execution via Chained DCS Escape Sequences
Kitty is a cross-platform GPU based terminal. Prior to 0.48.2, the @kitty-echo and @kitty-ssh DCS handlers in kitty/window.py write unauthenticated data to the child shell's stdin, where handle_remote_echo accepts printable shell command characters and handle_remote_ssh calls get_ssh_data in kittens/ssh/utils.py, which emits a newline; chaining the handlers can execute attacker-controlled commands when a user displays untrusted terminal data. This issue is fixed in version 0.48.2. This could lead to a complete compromise of the user's system. Red Hat severity: Important — CVSS 7.8 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Weakness: CWE-78. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9. Red Hat lists External Secrets Operator for Red Hat OpenShift; Logging Subsystem for Red Hat OpenShift as not affected. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: gvisor-tap-vsock.
High [CVE-2026-63622] swtpm privilege escalation via symlink following
A flaw was found in libvirt. A local attacker, specifically a process running as the confined `swtpm` user, could exploit a symlink-following vulnerability in the `virFileChownFiles()` function. By planting a symbolic link within the `swtpm` state directory, the attacker could trick the root-level libvirt daemon into changing the ownership of an arbitrary file to the `swtpm` user. This allows for privilege escalation from the `swtpm` sandbox to root-level file ownership control. Red Hat severity: Important — CVSS 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-59. 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-2026-18982] RHOAI fork aggregates training job create onto native edit/admin ClusterRoles
A flaw was found in the RHOAI training-operator. This vulnerability allows a user with standard edit or admin roles in any Kubernetes namespace to escalate their privileges. Through the creation of training jobs, an attacker can impersonate service accounts, access the host filesystem, and potentially execute arbitrary code remotely. This issue arises from the aggregation of training job permissions onto native Kubernetes edit and admin ClusterRoles, coupled with unrestricted PodTemplateSpec passthrough. This is a Critical vulnerability. This allows any namespace editor to escalate privileges by creating training jobs that can impersonate ServiceAccounts, mount hostPath volumes, set privileged security contexts, and achieve remote code execution, expanding the attack surface beyond users explicitly granted training workload access. Red Hat severity: Critical — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-250. Affected Red Hat products: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.4; Red Hat OpenShift AI 3.5. Red Hat fixing advisory: RHSA-2026:53261, RHSA-2026:53263, RHSA-2026:53262, RHSA-2026:60520, RHSA-2026:60367.
High [CVE-2026-18951] [Trainer v2 Security] TRN-02: RHOAI overlay aggregates trainjobs CRUD into standard edit ClusterRole
A flaw was found in the Red Hat OpenShift AI (RHOAI) overlay for the training operator. The RHOAI overlay incorrectly aggregates `trainjobs` management permissions into the native Kubernetes `edit ClusterRole`. This allows any user with `edit ClusterRole` permissions in a namespace to create, modify, and delete `TrainJobs`. When combined with a separate vulnerability (TRN-01) that permits arbitrary pod configurations, a remote attacker with namespace editor privileges could exploit this to escalate privileges, potentially leading to arbitrary code execution. This issue is specific to the RHOAI fork and not present in upstream Kubeflow trainer. Red Hat severity: Critical — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-267. Affected Red Hat products: Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.4; Red Hat OpenShift AI 3.5. Red Hat fixing advisory: RHSA-2026:53263, RHSA-2026:73987, RHSA-2026:53262, RHSA-2026:60520, RHSA-2026:60367.
High [CVE-2026-18950] Confused-deputy privilege escalation via unchecked roleRef in RoleBinding creation
A flaw was found in odh-dashboard. An authenticated user of the dashboard can exploit a vulnerability related to how RoleBindings are created. The system does not properly validate the `roleRef` field, allowing a user to specify an arbitrary role, including highly privileged ones like `cluster-admin`. This can lead to privilege escalation, where an attacker gains unauthorized elevated access within their namespace and potentially persistent control over the system. By crafting a RoleBinding with an arbitrary roleRef, an attacker can grant themselves any ClusterRole, including 'cluster-admin', within their namespace. Red Hat severity: Critical — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-266. Affected Red Hat products: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.4. Red Hat fixing advisory: RHSA-2026:53261, RHSA-2026:53263, RHSA-2026:53262.
High [CVE-2026-18949] ClusterRole grants cluster-wide CRUD on secrets and RBAC management resources
A flaw was found in odh-dashboard. This vulnerability allows an attacker, who has compromised the dashboard's Service Account (SA) token, to exploit overly broad permissions granted to the SA. This enables the attacker to escalate their privileges to cluster-administrator level, gain access to sensitive data like credentials and keys across the entire cluster, and disrupt multi-tenant isolation. A compromised dashboard Service Account could read and delete sensitive secrets across the cluster and create `ClusterRoleBindings`, leading to full cluster-admin privilege escalation and breaking multi-tenant isolation. This risk is present in Red Hat OpenShift AI deployments with the dashboard component enabled. Red Hat severity: Critical — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-250. Affected Red Hat products: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.4; Red Hat OpenShift AI (RHOAI). Red Hat fixing advisory: RHSA-2026:53261, RHSA-2026:53263, RHSA-2026:53262.
High [CVE-2026-18947] Authorization bypass in /materialize endpoints enables DoS via unauthorized full re-materialization
Authorization bypass in /materialize endpoints enables DoS via unauthorized full re-materialization. Red Hat rates this important (CVSS 8.5). Red Hat lists fixing advisory RHSA-2026:53263 with package rhoai/odh-feature-server-rhel9:1786110051, rhoai/odh-feature-server-rhel9:1786110033. Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3. Affected products named by the advisory: Red Hat OpenShift AI 3.4.
High [CVE-2026-18941] Default authentication mode is no_auth — shared multi-tenant instances deployed without authentication
Default authentication mode is no_auth — shared multi-tenant instances deployed without authentication. Red Hat rates this important (CVSS 7.7). Weakness: CWE-306. Red Hat lists fixing advisory RHSA-2026:53262 with package rhoai/odh-feature-server-rhel9:1786110051, rhoai/odh-feature-server-rhel9:1786110033, rhoai/odh-feature-server-rhel9:1786107278. Affected products named by the advisory: Red Hat OpenShift AI 3.3; Red Hat OpenShift AI (RHOAI); Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.4.
High [CVE-2026-15581] TAS internal Service bypasses kube-rbac-proxy, exposing unauthenticated Quarkus API cluster-wide
TAS internal Service bypasses kube-rbac-proxy, exposing unauthenticated Quarkus API cluster-wide. Red Hat rates this important (CVSS 8). Weakness: CWE-306. Red Hat lists fixing advisory RHSA-2026:53262 with package rhoai/odh-trustyai-service-operator-rhel9:1784993206, rhoai/odh-trustyai-service-operator-rhel9:1786614608, rhoai/odh-trustyai-service-operator-rhel9:1785187521, rhoai/odh-trustyai-service-operator-rhel9:1785187119. Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.4. Affected products named by the advisory: Red Hat OpenShift AI 3.5.
High [CVE-2026-15467] LMEvalJob sidecar containers bypass protected environment variable filtering, allowing TRUST_REMOTE_CODE policy override
LMEvalJob sidecar containers bypass protected environment variable filtering, allowing TRUST_REMOTE_CODE policy override. Red Hat rates this important (CVSS 8.1). Weakness: CWE-266. Red Hat lists fixing advisory RHSA-2026:53262 with package rhoai/odh-trustyai-service-operator-rhel9:1784993206, rhoai/odh-trustyai-service-operator-rhel9:1786614608, rhoai/odh-trustyai-service-operator-rhel9:1785187521, rhoai/odh-trustyai-service-operator-rhel9:1785187119. Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.4. Affected products named by the advisory: Red Hat OpenShift AI 3.5.
High [CVE-2026-13717] MaaS/llm-d inference Gateway: default allowedRoutes.namespaces.from: All allows namespace users to hijack shared model-serving traffic (tokens, prompts, outputs)
MaaS/llm-d inference Gateway: default allowedRoutes.namespaces.from: All allows namespace users to hijack shared model-serving traffic (tokens, prompts, outputs). Red Hat rates this important (CVSS 8.8). Weakness: CWE-284. Red Hat lists fixing advisory RHSA-2026:53262 with package rhoai/odh-rhel9-operator:1786123541, rhoai/odh-maas-controller-rhel9:1787153684. Affected products named by the advisory: Red Hat OpenShift AI 3.4; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-66805] stored DOM XSS via unescaped pod logs in document.write
stored DOM XSS via unescaped pod logs in document.write. Red Hat rates this important (CVSS 8). Weakness: CWE-79. Red Hat lists fixing advisory RHSA-2026:54432 with package multicluster-engine/console-mce-rhel9:1787079359, rhacm2/console-rhel9:1787339248, multicluster-engine/console-mce-rhel9:1787264250, rhacm2/console-rhel9:1787339213.