Red Hat Linux Security Advisories & Vulnerabilities
16054 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
Low [CVE-2025-12150] webauthn attestation statement verification bypass
A flaw was found in Keycloak’s WebAuthn registration component. This vulnerability allows an attacker to bypass the configured attestation policy and register untrusted or forged authenticators via submission of an attestation object with fmt: "none", even when the realm is configured to require direct attestation. This can lead to weakened authentication integrity and unauthorized authenticator registration. Affected products named by the advisory: Red Hat build of Keycloak 26.2; Red Hat build of Keycloak 26.4.
High [CVE-2026-27970] @angular/core: Angular: Cross-site scripting via compromised translation files
@angular/core: Angular: Cross-site scripting via compromised translation files. Red Hat rates this important (CVSS 7.1). Weakness: CWE-79. 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; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Fuse 7.
High [CVE-2026-27959] Host header injection vulnerability due to malformed HTTP Host header parsing
Host header injection vulnerability due to malformed HTTP Host header parsing. Red Hat rates this important (CVSS 8.2). Weakness: CWE-20. Affected package(s): rhoai/odh-mod-arch-model-registry-rhel9:1776742141, rhoai/odh-dashboard-rhel9:1776742021, openshift4/ose-monitoring-plugin-rhel9:1775577192. Resolved in Red Hat advisory RHSA-2026:10184 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat OpenShift Container Platform 4.19; Red Hat Developer Hub.
High [CVE-2026-27942] Stack overflow leads to Denial of Service
Stack overflow leads to Denial of Service. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-776. Affected package(s): odf4/mcg-core-rhel9:1776403991, odf4/mcg-rhel9-operator:1776404009, odf4/odf-cloudnative-pg-rhel9-operator:1776406131, odf4/odf-external-snapshotter-rhel9-operator:1776406284, odf4/odf-external-snapshotter-sidecar-rhel9:1776406291, advanced-cluster-security/rhacs-main-rhel8:1775594284. 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-2026-27896] improper handling of case sensitivity
improper handling of case sensitivity. Red Hat rates this important (CVSS 7.2). Weakness: CWE-178. 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: OpenShift Lightspeed; OpenShift Serverless; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-27830] Arbitrary Code Execution via deserialization of crafted objects
Arbitrary Code Execution via deserialization of crafted objects. Red Hat rates this important (CVSS 8). Weakness: CWE-502. Affected package(s): com.mchange/c3p0, org.hibernate.orm/hibernate-c3p0, eap8-hibernate, c3p0/c3p0, candlepin. Resolved in Red Hat advisory RHSA-2026:28385 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8; Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9; Red Hat Satellite 6.18 for RHEL 9; Red Hat build of Debezium 2; and 4 more.
Medium [CVE-2026-27141] Denial of Service due to malformed HTTP/2 frames
Denial of Service due to malformed HTTP/2 frames. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-476. Affected package(s): openshift-pipelines/pipelines-operator-bundle:1781686494, openshift-pipelines/pipelines-rhel9-operator:1780645012, golang1. Resolved in Red Hat advisory RHSA-2026:7385 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-28295] Gvfs: gvfs ftp backend: information disclosure via untrusted pasv responses
A flaw was found in the FTP GVfs backend. A malicious FTP server can exploit this vulnerability by providing an arbitrary IP address and port in its passive mode (PASV) response. The client unconditionally trusts this information and attempts to connect to the specified endpoint, allowing the malicious server to probe for open ports accessible from the client's network. This vulnerability requires user interaction with a compromised or malicious FTP server. Red Hat severity: Low — CVSS 4.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N). Weakness: CWE-918. Affected Red Hat products: 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 does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: gvfs.
Medium [CVE-2026-28296] Gvfs: ftp gvfs backend: arbitrary ftp command injection via crlf sequences in file paths
A flaw was found in the FTP GVfs backend. A remote attacker could exploit this input validation vulnerability by supplying specially crafted file paths containing carriage return and line feed (CRLF) sequences. These unsanitized sequences allow the attacker to terminate intended FTP commands and inject arbitrary FTP commands, potentially leading to arbitrary code execution or other severe impacts. An attacker could craft a malicious FTP path containing CRLF sequences to inject arbitrary FTP commands. This primarily impacts systems where users interact with untrusted FTP servers or open specially crafted FTP links through applications utilizing GVfs, typically in desktop environments. Red Hat severity: Moderate — CVSS 4.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N). Weakness: CWE-93. Affected Red Hat products: 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 does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: gvfs.
Medium [CVE-2026-27904] Denial of Service via catastrophic backtracking in glob expressions
Denial of Service via catastrophic backtracking in glob expressions. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-1333. Affected package(s): quay/quay-rhel9:1775069491, nodejs:20, nodejs:22, rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9:1776336652, devspaces/openvsx-rhel9:1779528224, satellite/iop-advisor-frontend-rhel9:1781181673. Resolved in Red Hat advisory RHSA-2026:13826 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
Medium [CVE-2026-27888] Denial of Service via crafted PDF
Denial of Service via crafted PDF. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-1050. Affected package(s): rhoai/odh-llama-stack-core-rhel9:1775144403. Resolved in Red Hat advisory RHSA-2026:10184 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Critical [CVE-2026-27606] Remote Code Execution via Path Traversal Vulnerability
Remote Code Execution via Path Traversal Vulnerability. Red Hat rates this important (CVSS 9.1). Weakness: CWE-22. Affected package(s): rhdh/rhdh-hub-rhel9:1774545605, automation-gateway, ansible-automation-platform, devspaces/traefik-rhel9:1776718585, automation-platform-ui, quay/quay-rhel8:1773971077. Resolved in Red Hat advisory RHSA-2026:5649 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Ansible Automation Platform 2.5 for RHEL 8; Red Hat Ansible Automation Platform 2.5 for RHEL 9; Red Hat Ansible Automation Platform 2.6 for RHEL 9; Red Hat Developer Hub 1.8; and 10 more.
High [CVE-2026-27148] Remote Code Execution via WebSocket Hijacking
Remote Code Execution via WebSocket Hijacking. Red Hat rates this important (CVSS 8.8). Weakness: CWE-346. 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-2026-26965] Arbitrary code execution via heap out-of-bounds write in RLE planar decode path
Arbitrary code execution via heap out-of-bounds write in RLE planar decode path. Red Hat rates this important (CVSS 8.8). Weakness: CWE-787. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:5936 — 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 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 10 more.
High [CVE-2026-26955] Arbitrary code execution via heap buffer overflow in GDI surface pipeline
Arbitrary code execution via heap buffer overflow in GDI surface pipeline. Red Hat rates this important (CVSS 8.8). Weakness: CWE-805. Affected package(s): freerdp. Resolved in Red Hat advisory RHSA-2026:5936 — 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 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 10 more.
High [CVE-2026-25554] Authentication bypass due to SQL injection in JWT processing
Authentication bypass due to SQL injection in JWT processing. Red Hat rates this important (CVSS 8.2). Weakness: CWE-89. 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-2026-27727] Arbitrary code execution via JNDI dereferencing of crafted objects
Arbitrary code execution via JNDI dereferencing of crafted objects. Red Hat rates this important (CVSS 8.3). Weakness: CWE-502. Affected package(s): candlepin, eap8-hibernate, mchange-commons-java. Resolved in Red Hat advisory RHSA-2026:18054 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat build of Apache Camel 4.14.4 for Spring Boot 3.5.11; Red Hat Build of Debezium 3.2; Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8; Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9; and 9 more.
High [CVE-2026-27699] File overwrite due to path traversal
File overwrite due to path traversal. 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 Enterprise Linux.
High [CVE-2026-26103] Missing Authorization Check Allows Unprivileged Users to Restore LUKS Headers via udisks D-Bus API
Missing Authorization Check Allows Unprivileged Users to Restore LUKS Headers via udisks D-Bus API. Red Hat rates this important (CVSS 7.1). Weakness: CWE-862. Affected package(s): udisks2. Resolved in Red Hat advisory RHSA-2026:5831 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support.
High [CVE-2026-27628] possible infinite loop when loading circular /Prev entries in cross-reference streams
possible infinite loop when loading circular /Prev entries in cross-reference streams. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-835. Affected package(s): quay/quay-rhel9:1775069491, rhoai/odh-llama-stack-core-rhel9:1775144403, quay/quay-rhel8:1773771962, quay/quay-rhel8:1773971077, quay/quay-rhel9:1775169226, quay/quay-rhel8:1773936323. Resolved in Red Hat advisory RHSA-2026:10184 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
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