Red Hat Linux Security Advisories & Vulnerabilities
16036 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited sources checked less often
Get an email when Red Hat publishes the next one.
See Red Hat's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).
iPhone and Android apps · New on the App Store
Monitor Red Hat CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.
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, so keep the system patched. This is the release's advisory history, not a per-package scan.
Official source
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
Medium [CVE-2026-8974] Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151
Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151. Red Hat rates this moderate (CVSS 6.1). Weakness: CWE-787. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Medium [CVE-2026-8959] Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. Red Hat rates this moderate (CVSS 6.1). Weakness: CWE-653. Affected package(s): thunderbird. Resolved in Red Hat advisory RHSA-2026:21381 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1.
Medium [CVE-2026-8958] Information disclosure, sandbox escape in the Security: Process Sandboxing component
Information disclosure, sandbox escape in the Security: Process Sandboxing component. Red Hat rates this moderate (CVSS 6.1). Weakness: CWE-403. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Medium [CVE-2026-8957] Privilege escalation in the Enterprise Policies component
Privilege escalation in the Enterprise Policies component. Red Hat rates this moderate (CVSS 6.1). Weakness: CWE-266. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Medium [CVE-2026-8956] Integer overflow in the Networking: JAR component
Integer overflow in the Networking: JAR component. Red Hat rates this moderate (CVSS 6.1). Weakness: CWE-190. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Medium [CVE-2026-8955] Privilege escalation in the DOM: Workers component
Privilege escalation in the DOM: Workers component. Red Hat rates this moderate (CVSS 6.1). Weakness: CWE-266. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Medium [CVE-2026-8954] Incorrect boundary conditions, integer overflow in the Audio/Video component
Incorrect boundary conditions, integer overflow in the Audio/Video component. Red Hat rates this moderate (CVSS 6.1). Weakness: CWE-190. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Medium [CVE-2026-8953] Sandbox escape due to use-after-free in the Disability Access APIs component
Sandbox escape due to use-after-free in the Disability Access APIs component. Red Hat rates this moderate (CVSS 6.1). Weakness: CWE-825. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Medium [CVE-2026-8950] Same-origin policy bypass in the Networking: HTTP component
Same-origin policy bypass in the Networking: HTTP component. Red Hat rates this moderate (CVSS 6.1). Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Medium [CVE-2026-37978] Information Disclosure via evaluate-scopes Admin API
Information Disclosure via evaluate-scopes Admin API. Red Hat rates this moderate (CVSS 4.9). Weakness: CWE-639. Affected package(s): rhbk/keycloak-rhel9, rhbk/keycloak-operator-bundle:26.4.12, rhbk/keycloak-rhel9:26.4, rhbk/keycloak-rhel9-operator:26.4. Resolved in Red Hat advisory RHSA-2026:19596 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-37981] Information disclosure via broken access control in user lookup endpoint
Information disclosure via broken access control in user lookup endpoint. Red Hat rates this moderate (CVSS 4.3). Weakness: CWE-1220. Affected package(s): rhbk/keycloak-rhel9, rhbk/keycloak-operator-bundle:26.4.12, rhbk/keycloak-rhel9:26.4, rhbk/keycloak-rhel9-operator:26.4. Resolved in Red Hat advisory RHSA-2026:19596 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-8922] Security flaw in org.keycloak/keycloak-services
Security flaw in org.keycloak/keycloak-services. Red Hat rates this moderate (CVSS 5.4). Weakness: CWE-303. Affected package(s): rhbk/keycloak-operator-bundle:26.4.13, rhbk/keycloak-rhel9-operator:26.4, rhbk/keycloak-rhel9-operator, 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.
Medium [CVE-2026-8830] Policy bypass during WebAuthn credential registration via client-side JavaScript manipulation
Policy bypass during WebAuthn credential registration via client-side JavaScript manipulation. Red Hat rates this moderate (CVSS 4.3). Weakness: CWE-603. Affected package(s): rhbk/keycloak-operator-bundle:26.4.13, rhbk/keycloak-rhel9-operator:26.4, rhbk/keycloak-rhel9-operator, 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.
Medium [CVE-2026-37979] Information disclosure via OIDC token introspection endpoint audience bypass
Information disclosure via OIDC token introspection endpoint audience bypass. Red Hat rates this moderate (CVSS 6.5). Affected package(s): rhbk/keycloak-rhel9, rhbk/keycloak-operator-bundle:26.4.12, rhbk/keycloak-rhel9:26.4, rhbk/keycloak-rhel9-operator:26.4. Resolved in Red Hat advisory RHSA-2026:19596 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat build of Keycloak 26.4.
Medium [CVE-2026-37982] Unauthorized account takeover via WebAuthn token replay
Unauthorized account takeover via WebAuthn token replay. Red Hat rates this moderate (CVSS 6.8). Affected package(s): rhbk/keycloak-rhel9, rhbk/keycloak-operator-bundle:26.4.12, rhbk/keycloak-rhel9:26.4, rhbk/keycloak-rhel9-operator:26.4. Resolved in Red Hat advisory RHSA-2026:19596 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat build of Keycloak 26.4.
Medium [CVE-2026-9113] Out of bounds read in GPU
Out of bounds read in GPU. Red Hat rates this important (CVSS 6.5). Weakness: CWE-125. 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.
Low [CVE-2026-8970] Privilege escalation in the Security component
Privilege escalation in the Security component. Red Hat rates this low (CVSS 3.4). Weakness: CWE-266. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Low [CVE-2026-8968] Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component
Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. Red Hat rates this low (CVSS 3.4). Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Low [CVE-2026-8962] Mitigation bypass in the DOM: Security component
Mitigation bypass in the DOM: Security component. Red Hat rates this low (CVSS 3.4). Weakness: CWE-358. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Low [CVE-2026-8961] Spoofing issue in the Form Autofill component
Spoofing issue in the Form Autofill component. Red Hat rates this low (CVSS 3.4). Weakness: CWE-472. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:26551 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Free weekly CVE digest
Every Monday: the week's critical and high advisories for Red Hat or every vendor, new CISA KEV entries and upcoming end-of-life dates.