Red Hat Linux Security Advisories & CVEs
4712 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 Red Hat 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 Red Hat advisories
High [CVE-2026-16443] SAML broker metadata import disables response signature validation
SAML broker metadata import disables response signature validation. Red Hat rates this important (CVSS 7.4). Weakness: CWE-347. Red Hat lists fixing advisory RHSA-2026:50848 with package rhbk/keycloak-rhel9:26.6-11, rhbk/keycloak-operator-bundle:26.4.14-1, rhbk-keycloak-rhel9/rhbk-keycloak-rhel9, keycloak-services. Affected products named by the advisory: Red Hat build of Keycloak 26.4; Red Hat build of Keycloak 26.6.
High [CVE-2026-71226] Memory corruption via uncanceled AIO requests on error in libkcapi's one-shot AIO path
Memory corruption via uncanceled AIO requests on error in libkcapi's one-shot AIO path. Red Hat rates this moderate (CVSS 7.3). Weakness: CWE-416. Red Hat lists fixing advisory RHSA-2026:56985 with package libkcapi-main-1.5.1-0.1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more. Affected products named by the advisory: Red Hat OpenShift Container Platform 4; Red Hat Enterprise Linux 10.0 Extended Update Support.
High [CVE-2026-71287] Blind SQL injection due to improper input sanitization
Cacti's sanitize_sql_column (lib/functions.php) sanitizes user-supplied ORDER BY column names using the regex. Because this allowlist retains letters, digits, underscore, parentheses, and dot (intended to support expressions like COUNT(id) and table.column), a payload such as passes through completely unmodified. A flaw was found in Cacti. An authenticated user, regardless of their privilege level, can exploit a vulnerability where user-supplied input for sorting database columns is not properly sanitized. This allows for the injection of malicious SQL commands, leading to time-based blind SQL injection. The primary consequence is the potential for unauthorized access to sensitive information stored in the Cacti database. This flaw is rated Important because any authenticated Cacti user, regardless of privilege level, can inject arbitrary SQL into the ORDER BY clause via the sort_column parameter (e.g. SLEEP(5)), since sanitize_sql_column()'s allowlist regex fails to strip parentheses. This allows blind, time-based extraction of the entire Cacti database (C:H) and can degrade availability through sustained query delays (A:H), with no user interaction and low attack complexity required. This component is shipped only in EPEL. Red Hat does not ship this component in any core Red Hat products.
High [CVE-2026-71281] Arbitrary Code Execution via Unsafe Deserialization in LoRA-GA and CorDA Modules
Arbitrary Code Execution via Unsafe Deserialization in LoRA-GA and CorDA Modules. Red Hat rates this important (CVSS 8.8). Weakness: CWE-502. Affected products named by the advisory: Lightspeed Core; Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-71267] Stack buffer overflow via overly long filenames
Stack buffer overflow via overly long filenames. Red Hat rates this important (CVSS 8.8). Weakness: CWE-120.
High [CVE-2026-71235] Arbitrary Code Execution via Unrestricted Script Execution
Arbitrary Code Execution via Unrestricted Script Execution. Red Hat rates this important (CVSS 8.8). Weakness: CWE-94. Red Hat lists fixing advisory RHSA-2026:59467 with package oadp/oadp-velero-rhel9:1786944540. Affected products named by the advisory: Assisted Installer for Red Hat OpenShift Container Platform 2; Builds for Red Hat OpenShift; cert-manager Operator for Red Hat OpenShift; Compliance Operator; and 35 more. Affected products named by the advisory: Confidential Compute Attestation; Cryostat 4; Deployment Validation Operator; External Secrets Operator for Red Hat OpenShift; and 31 more.
High [CVE-2026-59679] Font Server Client encoding Out-Of-Bounds Read/Write
Font Server Client encoding[] Out-Of-Bounds Read/Write. Red Hat rates this important (CVSS 7.5). Weakness: CWE-125. Red Hat lists fixing advisory RHSA-2026:55447 with package libXfont2-0:2.0.3-12.el9_8.3, libXfont2-0:2.0.3-12.el9_4.3, libXfont2-0:2.0.6-5.el10_2.3, libXfont2-0:2.0.3-12.el9_2.3. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8.
High [CVE-2026-44950] Privilege Escalation via Heap Buffer Overflow in Font Server Client
Privilege Escalation via Heap Buffer Overflow in Font Server Client. Red Hat rates this important (CVSS 7.5). Weakness: CWE-120. Red Hat lists fixing advisory RHSA-2026:55447 with package libXfont2-0:2.0.3-12.el9_8.3, libXfont2-0:2.0.3-12.el9_4.3, libXfont2-0:2.0.6-5.el10_2.3, libXfont2-0:2.0.3-12.el9_2.3. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8.
High [CVE-2026-71202] Denial of Service via integer underflow in image cropping function
Denial of Service via integer underflow in image cropping function. Red Hat rates this important (CVSS 7.5). Weakness: CWE-191. Affected product named by the advisory: Red Hat OpenShift Container Platform 4.
High [CVE-2026-66274] Denial of Service via unbounded type nesting
Denial of Service via unbounded type nesting. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected products named by the advisory: Red Hat AMQ Broker 7; Red Hat AMQ Clients; Red Hat build of Apache Camel 4 for Quarkus 3; Red Hat build of Apache Camel for Spring Boot 4; and 2 more. Affected products named by the advisory: Red Hat build of Quarkus; Red Hat JBoss Enterprise Application Platform Expansion Pack.
High [CVE-2026-67589] Denial of Service via excessive memory allocation
Denial of Service via excessive memory allocation. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected product named by the advisory: Red Hat AMQ Clients.
High [CVE-2026-66273] Denial of Service due to excessive allocation
A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue. A remote attacker, without needing to authenticate, could exploit a vulnerability in how the software handles type sizes and counts. This could lead to excessive memory allocation, causing the system to become unresponsive and resulting in a denial of service. By sending specially crafted messages, an attacker can trigger excessive memory allocation, leading to resource exhaustion in applications utilizing the library within Red Hat products such as AMQ, Quarkus, Camel, and EAP. Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-770. Affected Red Hat products: Red Hat AMQ Broker 7.13.6; Red Hat AMQ Broker 7.14.1; Red Hat AMQ Clients; Red Hat build of Apache Camel 4 for Quarkus 3; Red Hat build of Apache Camel for Spring Boot 4; Red Hat JBoss Enterprise Application Platform Expansion Pack. Red Hat fixing advisory: RHSA-2026:66545, RHSA-2026:66488.
High [CVE-2026-67588] Denial of Service via unbounded symbol value caching
Denial of Service via unbounded symbol value caching. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected product named by the advisory: Red Hat AMQ Clients.
High [CVE-2026-66257] Denial of Service via unbounded symbol value caching
A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue. A remote attacker, without needing to authenticate, could exploit an issue with unbounded symbol value caching. This could lead to resource exhaustion, where the system runs out of available resources, ultimately causing a denial of service (DoS). A denial of service attack makes the affected system unavailable to legitimate users. This can lead to service unavailability in Red Hat products utilizing affected versions of Proton-J that expose a network endpoint. The vulnerability's impact is significant due to the potential for unauthenticated remote attackers to disrupt service. Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-770. Affected Red Hat products: Red Hat AMQ Broker 7.13.6; Red Hat AMQ Broker 7.14.1; Red Hat AMQ Clients; Red Hat build of Apache Camel 4 for Quarkus 3; Red Hat build of Apache Camel for Spring Boot 4; Red Hat JBoss Enterprise Application Platform Expansion Pack. Red Hat fixing advisory: RHSA-2026:66545, RHSA-2026:66488.
High [CVE-2026-64572] free fib_alias with kfree_rcu on insert error path
free fib_alias with kfree_rcu() on insert error path. Red Hat rates this moderate (CVSS 7). Weakness: CWE-825. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.
High [CVE-2026-67863] Denial of Service via use-after-free vulnerability
Denial of Service via use-after-free vulnerability. Red Hat rates this important (CVSS 7.5). Weakness: CWE-825.
High [CVE-2026-67870] Denial of Service via incomplete validation in AddReferences
Denial of Service via incomplete validation in AddReferences. Red Hat rates this important (CVSS 7.5). Weakness: CWE-476.
High [CVE-2026-67869] Denial of Service via buffer overflow in Service_Call
Denial of Service via buffer overflow in Service_Call. Red Hat rates this important (CVSS 7.5). Weakness: CWE-125.
High [CVE-2026-64577] check skb_pull_data return in gtp1u_send_echo_resp
check skb_pull_data() return in gtp1u_send_echo_resp(). Red Hat rates this moderate (CVSS 7). Weakness: CWE-124.
High [CVE-2026-64573] fix NVM tag length underflow in TLV parser
fix NVM tag length underflow in TLV parser. Red Hat rates this moderate (CVSS 7). Weakness: CWE-125.