Red Hat Linux Security Advisories & CVEs
3066 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-2026-23111] Privilege escalation or denial of service in nf_tables via inverted element activity check
Privilege escalation or denial of service in nf_tables via inverted element activity check. Red Hat rates this important (CVSS 7.8). Weakness: CWE-672. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:9112 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux AppStream EUS (v. 10.0); Red Hat Enterprise Linux AppStream (v. 10); Red Hat Enterprise Linux AppStream EUS (v.9.4); Red Hat Enterprise Linux AppStream EUS (v.9.6); and 24 more.
High [CVE-2026-2441] Use after free in CSS
Use after free in CSS. Red Hat rates this important (CVSS 8.8). 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-2026-25949] Denial of Service via stalled STARTTLS requests
Denial of Service via stalled STARTTLS requests. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected package(s): devspaces/traefik-rhel9:1774227265. Resolved in Red Hat advisory RHSA-2026:6192 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat OpenShift Dev Spaces 3.27.
High [CVE-2026-2007] PostgreSQL pg_trgm heap buffer overflow writes pattern onto server memory
PostgreSQL pg_trgm heap buffer overflow writes pattern onto server memory. Red Hat rates this important (CVSS 8.2). Weakness: CWE-120. Affected package(s): postgresql18-main, postgresql18. Resolved in Red Hat advisory RHSA-2026:19009 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Hardened Images; Red Hat Enterprise Linux 9.
High [CVE-2026-2006] PostgreSQL missing validation of multibyte character length executes arbitrary code
PostgreSQL missing validation of multibyte character length executes arbitrary code. Red Hat rates this important (CVSS 8.8). Weakness: CWE-1285. Affected package(s): postgresql, postgresql:16, postgresql:15, postgresql18-main, rhui5/rhua-rhel9:1773670137, postgresql:13. Resolved in Red Hat advisory RHSA-2026:4516 — 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 8.2 Advanced 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; and 11 more.
High [CVE-2026-2005] PostgreSQL pgcrypto heap buffer overflow executes arbitrary code
PostgreSQL pgcrypto heap buffer overflow executes arbitrary code. Red Hat rates this important (CVSS 8.8). Weakness: CWE-120. Affected package(s): postgresql, postgresql:16, postgresql:15, postgresql18-main, rhui5/rhua-rhel9:1773670137, postgresql:13. Resolved in Red Hat advisory RHSA-2026:4516 — 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 8.2 Advanced 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; and 11 more.
High [CVE-2026-2004] PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code
PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code. Red Hat rates this important (CVSS 8.8). Weakness: CWE-1287. Affected package(s): postgresql, postgresql:16, postgresql:15, postgresql18-main, rhui5/rhua-rhel9:1773670137, postgresql:13. Resolved in Red Hat advisory RHSA-2026:4516 — 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 8.2 Advanced 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; and 11 more.
High [CVE-2026-2327] Denial of Service via Regular Expression Denial of Service in linkify function
Denial of Service via Regular Expression Denial of Service in linkify function. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-1333. Affected package(s): devspaces/openvsx-rhel9:1779528224. Resolved in Red Hat advisory RHSA-2026:21772 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-25990] Out-of-bounds Write via Specially Crafted PSD Image
Out-of-bounds Write via Specially Crafted PSD Image. Red Hat rates this important (CVSS 7.3). Weakness: CWE-787. Affected package(s): ansible-automation-platform, quay/quay-rhel9:1775069491, python3.12-pillow, rhaiis/model-opt-cuda-rhel9:1772713830, rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9:1776336652, rhoai/odh-workbench-jupyter-pytorch-rocm-py312-rhel9:1776318795. Resolved in Red Hat advisory RHSA-2026:6309 — 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 Satellite 6.16 for RHEL 8; and 15 more.
High [CVE-2020-37178] Denial of Service via malicious HTML file drag and drop in help system
Denial of Service via malicious HTML file drag and drop in help system. Red Hat rates this important (CVSS 7.5). Weakness: CWE-237. 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-2026-1837] Out-of-bounds write in grayscale color transformation when using LCMS2
Out-of-bounds write in grayscale color transformation when using LCMS2. Red Hat rates this important (CVSS 8.8). Weakness: CWE-787. 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-2026-26157] Arbitrary file overwrite and potential code execution via incomplete path sanitization
Arbitrary file overwrite and potential code execution via incomplete path sanitization. Red Hat rates this important (CVSS 7). Weakness: CWE-73. Affected package(s): busybox-main. Resolved in Red Hat advisory RHSA-2026:13831 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat Hardened Images.
High [CVE-2026-26158] Arbitrary file modification and privilege escalation via unvalidated tar archive entries
Arbitrary file modification and privilege escalation via unvalidated tar archive entries. Red Hat rates this important (CVSS 7). Weakness: CWE-73. Affected package(s): busybox-main. Resolved in Red Hat advisory RHSA-2026:13831 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat Hardened Images.
High [CVE-2025-69872] Arbitrary code execution via insecure pickle deserialization
Arbitrary code execution via insecure pickle deserialization. Red Hat rates this important (CVSS 7.6). Weakness: CWE-502. Affected package(s): rhoai/odh-kserve-agent-rhel9:1770754605. Resolved in Red Hat advisory RHSA-2026:3713 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift AI 3.3; Red Hat Satellite 6.18; Red Hat AI Inference Server; Red Hat OpenShift AI (RHOAI).
High [CVE-2025-69873] ReDoS via $data reference
ReDoS via $data reference. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1333. Affected package(s): quay/quay-rhel9:1775069491, rhoai/odh-dashboard-rhel8:1774282136, rhoai/odh-mod-arch-gen-ai-rhel9:1778473763, automation-gateway, rhoai/odh-dashboard-rhel9:1779189627, satellite/iop-advisor-frontend-rhel9:1781181673. Resolved in Red Hat advisory RHSA-2026:6309 — 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 JBoss Enterprise Application Platform 7.3 EUS for RHEL 7; and 36 more.
High [CVE-2026-26007] cryptography Subgroup Attack Due to Missing Subgroup Validation for SECT Curves
cryptography Subgroup Attack Due to Missing Subgroup Validation for SECT Curves. Red Hat rates this important (CVSS 7.4). Weakness: CWE-354. Affected package(s): ansible-automation-platform, quay/quay-rhel9:1775069491, rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9:1776336652, fence-agents, rhoai/odh-workbench-jupyter-minimal-rocm-py312-rhel9:1776319190, rhoai/odh-workbench-jupyter-pytorch-rocm-py312-rhel9:1776318795. Resolved in Red Hat advisory RHSA-2026:6309 — 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 Enterprise Linux 8; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; and 14 more.
High [CVE-2026-25506] MUNGE has a buffer overflow in message unpacking allows key leakage and credential forgery
MUNGE has a buffer overflow in message unpacking allows key leakage and credential forgery. Red Hat rates this important (CVSS 7.7). Weakness: CWE-120. Affected package(s): munge, rhaiis/vllm-spyre-rhel9:1778244546. Resolved in Red Hat advisory RHSA-2026:2934 — 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 8.2 Advanced 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; and 10 more.
High [CVE-2025-14821] Insecure default configuration leads to local man-in-the-middle attacks on Windows
Insecure default configuration leads to local man-in-the-middle attacks on Windows. Red Hat rates this low (CVSS 7.8). Weakness: CWE-427. Affected package(s): libssh-main. Resolved in Red Hat advisory RHSA-2026:7067 — update the affected packages (`sudo dnf update`). Affected product named by the advisory: Red Hat Hardened Images.
High [CVE-2026-25646] LIBPNG has a heap buffer overflow in png_set_quantize
LIBPNG has a heap buffer overflow in png_set_quantize. Red Hat rates this important (CVSS 7). Weakness: CWE-125. Affected package(s): rhcos, libpng15, libpng, libpng12, java, rhaiis/vllm-spyre-rhel9:1778244546. Resolved in Red Hat advisory RHSA-2026:5606 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Build of OpenJDK 17.0.9; 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; and 30 more.
High [CVE-2025-35998] Intel (R): From CVEorg collector
Intel (R): From CVEorg collector. Red Hat rates this important (CVSS 7.9). Weakness: CWE-1220. Affected package(s): microcode_ctl. Resolved in Red Hat advisory RHSA-2026:6888 — 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 9.