Red Hat Linux Red Hat Enterprise Linux Vulnerabilities & Security Advisories
1303 advisories tracked · Red Hat Security Data API · 3 listed in the CISA Known Exploited Vulnerabilities catalog
Every row below is a published Red Hat Linux advisory that VulniPulse classified as Red Hat Enterprise Linux, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 31 critical, 821 high, 430 medium, 17 low.
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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 Red Hat Enterprise Linux advisories
High [CVE-2026-46333] Read root-owned files as an unprivileged user
Read root-owned files as an unprivileged user. Red Hat rates this important (CVSS 7.8). Weakness: CWE-269. Affected package(s): kernel, rhcos, kernel-rt, openshift, kpatch-patch, cri-o. Resolved in Red Hat advisory RHSA-2026:23470 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: NVIDIA for RHEL 10; Red Hat OpenShift Container Platform 4.20; Red Hat Enterprise Linux AppStream EUS (v. 10.0); Red Hat Enterprise Linux AppStream (v. 10); and 55 more.
High [CVE-2025-54518] Privilege escalation via improper CPU cache isolation
Privilege escalation via improper CPU cache isolation. Red Hat rates this important (CVSS 7). Weakness: CWE-1220. 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 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more.
High [CVE-2026-44673] Denial of Service or arbitrary code execution via maliciously crafted LYB binary blob
Denial of Service or arbitrary code execution via maliciously crafted LYB binary blob. Red Hat rates this important (CVSS 7.5). Weakness: CWE-190. Affected package(s): libyang. Resolved in Red Hat advisory RHSA-2026:24758 — 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-2026-44513] Arbitrary remote code execution via `trust_remote_code` bypass
Arbitrary remote code execution via `trust_remote_code` bypass. Red Hat rates this important (CVSS 8.8). Weakness: CWE-358. 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 AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-6478] Credential recovery via covert timing channel in MD5 password comparison
Credential recovery via covert timing channel in MD5 password comparison. Red Hat rates this important (CVSS 8.2). Weakness: CWE-385. Affected package(s): postgresql, postgresql:12, postgresql:18, postgresql:15, libpq, postgresql:13. Resolved in Red Hat advisory RHSA-2026:26561 — 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 9 more.
High [CVE-2026-6477] PostgreSQL libpq: Buffer overflow allows server superuser to overwrite client stack memory
PostgreSQL libpq: Buffer overflow allows server superuser to overwrite client stack memory. Red Hat rates this important (CVSS 8.4). Weakness: CWE-120. Affected package(s): postgresql, postgresql:12, postgresql:18, postgresql:15, libpq, postgresql16. Resolved in Red Hat advisory RHSA-2026:26561 — 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 9 more.
High [CVE-2026-6473] integer overflow can cause an undersized allocation and an out-of-bounds write
integer overflow can cause an undersized allocation and an out-of-bounds write. Red Hat rates this important (CVSS 8.8). Weakness: CWE-190. Affected package(s): postgresql, postgresql:12, postgresql:18, postgresql:15, libpq, postgresql16. Resolved in Red Hat advisory RHSA-2026:26561 — 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 10 more.
High [CVE-2026-42561] Denial of Service via excessive multipart part headers
Denial of Service via excessive multipart part headers. Red Hat rates this important (CVSS 7.5). Weakness: CWE-606. 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: python-multipart; Red Hat OpenShift AI 3.3; Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; and 5 more.
High [CVE-2026-42587] Denial of Service via unbounded memory allocation in HTTP content decompression
Denial of Service via unbounded memory allocation in HTTP content decompression. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected package(s): devspaces/pluginregistry-rhel9:1780696380, cryostat/jfr-datasource-rhel9:4.2.0, netty-codec-http, devspaces/openvsx-rhel9:1780948325, devspaces/server-rhel9:1780694994, cryostat/cryostat-reports-rhel9:4.2.0. Resolved in Red Hat advisory RHSA-2026:23808 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Cryostat 4 on RHEL 9; Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16; Red Hat build of Quarkus 3.27.4; Red Hat OpenShift Dev Spaces 3.28; and 18 more.
High [CVE-2026-42584] Incorrect HTTP response parsing leads to data confusion
Incorrect HTTP response parsing leads to data confusion. Red Hat rates this important (CVSS 7.3). Weakness: CWE-444. Affected package(s): devspaces/pluginregistry-rhel9:1780696380, cryostat/jfr-datasource-rhel9:4.2.0, netty-codec-http, devspaces/openvsx-rhel9:1780948325, devspaces/server-rhel9:1780694994, cryostat/cryostat-reports-rhel9:4.2.0. Resolved in Red Hat advisory RHSA-2026:23808 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Cryostat 4 on RHEL 9; Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16; Red Hat build of Quarkus 3.27.4; Red Hat OpenShift Dev Spaces 3.28; and 19 more.
High [CVE-2026-42579] High integrity impact due to improper DNS domain name constraint enforcement
High integrity impact due to improper DNS domain name constraint enforcement. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1286. Affected package(s): netty-codec-dns, devspaces/pluginregistry-rhel9:1780696380, cryostat/jfr-datasource-rhel9:4.2.0, devspaces/openvsx-rhel9:1780948325, devspaces/server-rhel9:1780694994, cryostat/cryostat-reports-rhel9:4.2.0. Resolved in Red Hat advisory RHSA-2026:23808 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Cryostat 4 on RHEL 9; Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16; Red Hat build of Quarkus 3.27.4; Red Hat OpenShift Dev Spaces 3.28; and 1 more.
High [CVE-2026-42578] HTTP Header Injection via HttpProxyHandler Disabled Validation
HTTP Header Injection via HttpProxyHandler Disabled Validation. Red Hat rates this important (CVSS 7.5). Weakness: CWE-93. Affected package(s): netty-handler-proxy, devspaces/pluginregistry-rhel9:1780696380, cryostat/jfr-datasource-rhel9:4.2.0, devspaces/openvsx-rhel9:1780948325, devspaces/server-rhel9:1780694994, cryostat/cryostat-reports-rhel9:4.2.0. Resolved in Red Hat advisory RHSA-2026:23808 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Cryostat 4 on RHEL 9; Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16; Red Hat build of Quarkus 3.27.4; Red Hat OpenShift Dev Spaces 3.28; and 18 more.
High [CVE-2026-42581] HTTP Request Smuggling due to improper handling of conflicting HTTP/1.0 headers
HTTP Request Smuggling due to improper handling of conflicting HTTP/1.0 headers. Red Hat rates this important (CVSS 7.2). Weakness: CWE-444. Affected package(s): devspaces/pluginregistry-rhel9:1780696380, cryostat/jfr-datasource-rhel9:4.2.0, netty-codec-http, devspaces/openvsx-rhel9:1780948325, devspaces/server-rhel9:1780694994, cryostat/cryostat-reports-rhel9:4.2.0. Resolved in Red Hat advisory RHSA-2026:23808 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Cryostat 4 on RHEL 9; Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16; Red Hat build of Quarkus 3.27.4; Red Hat OpenShift Dev Spaces 3.28; and 2 more.
High [CVE-2026-45109] Information disclosure via security fix bypass in middleware with Turbopack
Information disclosure via security fix bypass in middleware with Turbopack. Red Hat rates this important (CVSS 7.5). Weakness: CWE-358. Affected package(s): next. Resolved in Red Hat advisory RHSA-2026:34608 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Trusted Artifact Signer 1.4; Red Hat Enterprise Linux AI (RHEL AI) 3.
High [CVE-2026-44579] Denial of Service via crafted POST requests to server actions
Denial of Service via crafted POST requests to server actions. Red Hat rates this important (CVSS 7.5). Weakness: CWE-833. Affected package(s): next. Resolved in Red Hat advisory RHSA-2026:34608 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Trusted Artifact Signer 1.4; Red Hat Enterprise Linux AI (RHEL AI) 3.
High [CVE-2026-44578] Server-Side Request Forgery via crafted WebSocket upgrade requests
Server-Side Request Forgery via crafted WebSocket upgrade requests. Red Hat rates this important (CVSS 8.6). Weakness: CWE-918. Affected package(s): next. Resolved in Red Hat advisory RHSA-2026:34608 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Trusted Artifact Signer 1.4; Red Hat Enterprise Linux AI (RHEL AI) 3.
High [CVE-2026-44577] Denial of Service via Image Optimization API
Denial of Service via Image Optimization API. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected package(s): next. Resolved in Red Hat advisory RHSA-2026:34608 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Trusted Artifact Signer 1.4; Red Hat Enterprise Linux AI (RHEL AI) 3.
High [CVE-2026-44574] Authorization bypass via crafted query parameters
Authorization bypass via crafted query parameters. Red Hat rates this important (CVSS 8.1). Weakness: CWE-551. Affected package(s): next. Resolved in Red Hat advisory RHSA-2026:34608 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Trusted Artifact Signer 1.4; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat Trusted Artifact Signer 1.3.
High [CVE-2026-44575] Unauthorized access to protected content via middleware bypass
Unauthorized access to protected content via middleware bypass. Red Hat rates this important (CVSS 7.5). Weakness: CWE-551. Affected package(s): next. Resolved in Red Hat advisory RHSA-2026:34608 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Trusted Artifact Signer 1.4; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat Trusted Artifact Signer 1.3.
High [CVE-2026-44573] Information disclosure due to middleware bypass in Pages Router with i18n
Information disclosure due to middleware bypass in Pages Router with i18n. Red Hat rates this important (CVSS 7.5). Weakness: CWE-551. Affected package(s): next. Resolved in Red Hat advisory RHSA-2026:34608 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Trusted Artifact Signer 1.4; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat Trusted Artifact Signer 1.3.