Red Hat Linux Security Advisories & Vulnerabilities
16067 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited sources checked less often
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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, so 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
High [CVE-2026-23876] Arbitrary code execution via a crafted XBM image file
Arbitrary code execution via a crafted XBM image file. Red Hat rates this important (CVSS 8.1). Weakness: CWE-787. Affected package(s): ImageMagick. Resolved in Red Hat advisory RHSA-2026:3058 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle Support.
High [CVE-2026-23950] Arbitrary file overwrite via Unicode path collision race condition
Arbitrary file overwrite via Unicode path collision race condition. Red Hat rates this important (CVSS 8.8). Weakness: CWE-367. Affected package(s): devspaces/udi-rhel9:1774451954, rhtas/rekor-search-ui-rhel9:1770107452, rhtas/rekor-search-ui-rhel9:1770739056, linux-sgx. Resolved in Red Hat advisory RHSA-2026:18868 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat OpenShift Dev Spaces 3.27; Red Hat Trusted Artifact Signer 1.2; and 17 more.
High [CVE-2026-23949] Path traversal via malicious tar archives
Path traversal via malicious tar archives. Red Hat rates this important (CVSS 8.6). 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-2025-56005] Unsafe pickle file handling in Ply
Unsafe pickle file handling in Ply. Red Hat rates this important (CVSS 7.8). Weakness: CWE-502. 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: Migration Toolkit for Containers; OpenShift Developer Tools and Services; OpenShift Pipelines; Red Hat Advanced Cluster Security 4; and 14 more.
Medium [CVE-2026-0672] Header injection in http.cookies.Morsel in Python
Header injection in http.cookies. Morsel in Python. Red Hat rates this moderate (CVSS 4.8). Weakness: CWE-93. Affected package(s): python3.12, rhui5/rhua-rhel9:1779798222, rhui5/installer-rhel9:1779798165. Resolved in Red Hat advisory RHSA-2026:19064 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 8.
Medium [CVE-2025-15282] Header injection via newlines in data URL mediatype in Python
Header injection via newlines in data URL mediatype in Python. Red Hat rates this moderate (CVSS 4.8). Weakness: CWE-93. Affected package(s): python3.12, python3, rhui5/rhua-rhel9:1779798222, rhui5/installer-rhel9:1779798165. Resolved in Red Hat advisory RHSA-2026:19064 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 8.
Medium [CVE-2026-0865] wsgiref.headers.Headers allows header newline injection in Python
wsgiref.headers. Headers allows header newline injection in Python. Red Hat rates this moderate (CVSS 4.5). Weakness: CWE-74. Affected package(s): python3.11, python3, rhui5/haproxy-rhel9:1779798164, rhui5/rhua-rhel9:1773670137, rhui5/rhua-rhel9:1779798222, python3.12. Resolved in Red Hat advisory RHSA-2026:2128 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 1.
Medium [CVE-2026-21925] Improve JMX connections (Oracle CPU 2026-01)
Improve JMX connections (Oracle CPU 2026-01). Red Hat rates this moderate (CVSS 4.8). Weakness: CWE-322. Affected package(s): java. Resolved in Red Hat advisory RHSA-2026:0895 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
Medium [CVE-2026-21933] Improve HttpServer Request handling (Oracle CPU 2026-01)
Improve HttpServer Request handling (Oracle CPU 2026-01). Red Hat rates this moderate (CVSS 6.1). Weakness: CWE-93. Affected package(s): java. Resolved in Red Hat advisory RHSA-2026:0895 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
Medium [CVE-2025-11468] Missing character filtering in Python
Missing character filtering in Python. Red Hat rates this moderate (CVSS 4.5). Weakness: CWE-140. Affected package(s): python3. Resolved in Red Hat advisory RHSA-2026:8824 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2025-55132] Nodejs filesystem permissions bypass
Nodejs filesystem permissions bypass. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-281. Affected package(s): nodejs25-main, nodejs22, nodejs:24, nodejs:22, nodejs24-main, nodejs20-main. Resolved in Red Hat advisory RHSA-2026:1842 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1.
Medium [CVE-2026-21637] Nodejs denial of service
Nodejs denial of service. Red Hat rates this moderate (CVSS 5.9). Weakness: CWE-248. Affected package(s): nodejs22, nodejs:20, nodejs:22, nodejs25-main, nodejs:24, nodejs24-main. Resolved in Red Hat advisory RHSA-2026:1842 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1.
Medium [CVE-2026-21636] Nodejs network segmentation bypass
Nodejs network segmentation bypass. Red Hat rates this moderate (CVSS 5.8). Weakness: CWE-281. Affected package(s): nodejs20-main, nodejs25-main, nodejs22-main, nodejs24-main. Resolved in Red Hat advisory RHSA-2026:6402 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2025-59466] Nodejs denial of service
Nodejs denial of service. Red Hat rates this moderate (CVSS 5.9). Weakness: CWE-770. Affected package(s): nodejs22, nodejs:20, nodejs:22, nodejs25-main, nodejs:24, nodejs24-main. Resolved in Red Hat advisory RHSA-2026:1842 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1.
Medium [CVE-2025-59464] Nodejs memory leak
Nodejs memory leak. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-770. Affected package(s): nodejs20-main, nodejs25-main, nodejs22-main, nodejs24-main. Resolved in Red Hat advisory RHSA-2026:7657 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2025-15281] wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory
wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory. Red Hat rates this low (CVSS 5.9). Weakness: CWE-908. Affected package(s): insights-proxy/insights-proxy-container-rhel9:1773685509, rhui5/rhua-rhel9:1773670137, glibc, discovery/discovery-server-rhel9:1773273243, discovery/discovery-ui-rhel9:1773273070, glibc-main. Resolved in Red Hat advisory RHSA-2026:18139 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 1.
Medium [CVE-2024-31884] Improper use of Pybind
Improper use of Pybind. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-295. Affected package(s): ceph, rhceph/rhceph. Resolved in Red Hat advisory RHSA-2026:2711 — 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-2026-21941] Optimizer unspecified vulnerability (CPU Jan 2026)
Optimizer unspecified vulnerability (CPU Jan 2026). Red Hat rates this moderate (CVSS 4.9). Affected package(s): mysql8.4, mysql:8.0, mysql, mysql:8.4. Resolved in Red Hat advisory RHSA-2026:5580 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
Medium [CVE-2026-21936] InnoDB unspecified vulnerability (CPU Jan 2026)
InnoDB unspecified vulnerability (CPU Jan 2026). Red Hat rates this moderate (CVSS 4.9). Affected package(s): mysql8.4, mysql:8.0, mysql, mysql:8.4. Resolved in Red Hat advisory RHSA-2026:5580 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
Medium [CVE-2026-21968] Optimizer unspecified vulnerability (CPU Jan 2026)
Optimizer unspecified vulnerability (CPU Jan 2026). Red Hat rates this moderate (CVSS 6.5). Affected package(s): mariadb:10.11, mysql8.4, mariadb10.11, mysql:8.0, mysql, mysql:8.4. Resolved in Red Hat advisory RHSA-2026:0334 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
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