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Security advisories & CVEs
5199 advisories across 32 monitored vendors.
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High [CVE-2026-27135] Denial of Service via malformed HTTP/2 frames after session termination
Denial of Service via malformed HTTP/2 frames after session termination. Red Hat rates this important (CVSS 7.5). Weakness: CWE-617. Affected package(s): rhcos, nodejs:20, rhpam, rhaiis/vllm-cuda-rhel9:1778274666, nghttp2, rhui5/haproxy-rhel9:1776868744. Resolved in Red Hat advisory RHSA-2026:20040 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat JBoss Core Services on RHEL 7 Server; Red Hat JBoss Core Services on RHEL 8; Red Hat OpenShift Container Platform 4.12; Middleware Containers for OpenShift; and 57 more.
High [CVE-2026-33001] Arbitrary file write and potential code execution through crafted archives
Arbitrary file write and potential code execution through crafted archives. Red Hat rates this important (CVSS 8.8). Weakness: CWE-22. Affected package(s): ocp-tools. Resolved in Red Hat advisory RHSA-2026:10209 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: OpenShift Developer Tools and Services 4.12; OpenShift Developer Tools and Services 4.13; OpenShift Developer Tools and Services 4.14; OpenShift Developer Tools and Services 4.15; and 6 more.
High [CVE-2026-31938] Cross site scripting via unsanitized output options
Cross site scripting via unsanitized output options. Red Hat rates this important (CVSS 8.1). Weakness: CWE-79. Affected package(s): advanced-cluster-security/rhacs-main-rhel8:1775594119, advanced-cluster-security/rhacs-main-rhel8:1775594284. Resolved in Red Hat advisory RHSA-2026:7110 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Advanced Cluster Security for Kubernetes 4.8; Red Hat Advanced Cluster Security for Kubernetes 4.9; Red Hat Advanced Cluster Security 4.8; Red Hat Advanced Cluster Security 4.9.
High [CVE-2026-31898] Arbitrary code execution via unsanitized input in createAnnotation method
Arbitrary code execution via unsanitized input in createAnnotation method. Red Hat rates this important (CVSS 8.1). Weakness: CWE-94. Affected package(s): advanced-cluster-security/rhacs-main-rhel8:1775594119, advanced-cluster-security/rhacs-main-rhel8:1775594284. Resolved in Red Hat advisory RHSA-2026:7110 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Advanced Cluster Security for Kubernetes 4.8; Red Hat Advanced Cluster Security for Kubernetes 4.9; Red Hat Advanced Cluster Security 4.8; Red Hat Advanced Cluster Security 4.9.
High [CVE-2026-30922] pyasn1 Vulnerable to Denial of Service via Unbounded Recursion
pyasn1 Vulnerable to Denial of Service via Unbounded Recursion. Red Hat rates this important (CVSS 7.5). Weakness: CWE-835. Affected package(s): ansible-automation-platform, rhelai3/bootc-rocm-rhel9:1778666124, rhaiis/vllm-rocm-rhel9:1778244531, quay/quay-rhel8:1775169155, quay/quay-rhel8:1775253092, fence-agents. Resolved in Red Hat advisory RHSA-2026:13508 — 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 Enterprise Linux 10.0 Extended Update Support; and 28 more.
High [CVE-2026-28500] Untrusted Model Repository Warnings Suppressed
Untrusted Model Repository Warnings Suppressed. Red Hat rates this important (CVSS 8.6). Weakness: CWE-829. Affected package(s): rhoai/odh-pipeline-runtime-pytorch-cuda-py312-rhel9:1780078429, rhoai/odh-pipeline-runtime-tensorflow-rocm-py312-rhel9:1780417775, rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9:1780078388, rhoai/odh-workbench-jupyter-trustyai-cpu-py312-rhel9:1780069222, rhoai/odh-pipeline-runtime-pytorch-rocm-py312-rhel9:1780078632, rhoai/odh-pipeline-runtime-datascience-cpu-py312-rhel9:1780078312. Resolved in Red Hat advisory RHSA-2026:24977 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-23270] Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation
Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation. Red Hat rates this moderate (CVSS 7). Weakness: CWE-416. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:19569 — 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.
High [CVE-2026-26740] Denial of Service via buffer overflow in EGifGCBToExtension
Denial of Service via buffer overflow in EGifGCBToExtension. Red Hat rates this important (CVSS 7.5). Weakness: CWE-787. Affected package(s): giflib. Resolved in Red Hat advisory RHSA-2026:33503 — 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 13 more.
High [CVE-2023-43010] Processing maliciously crafted web content may lead to memory corruption
Processing maliciously crafted web content may lead to memory corruption. Red Hat rates this important (CVSS 8.8). Weakness: CWE-120. Affected package(s): webkit2gtk3, webkitgtk4. Resolved in Red Hat advisory RHSA-2024:9679 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle 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 Telecommunications Update Service; and 7 more.
High [CVE-2025-31223] Processing maliciously crafted web content may lead to memory corruption
Processing maliciously crafted web content may lead to memory corruption. Red Hat rates this important (CVSS 8.8). Weakness: CWE-120. Affected package(s): webkit2gtk3, webkitgtk4. Resolved in Red Hat advisory RHSA-2025:19157 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle 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 8 more.
High [CVE-2025-43213] Processing maliciously crafted web content may lead to an unexpected Safari crash
Processing maliciously crafted web content may lead to an unexpected Safari crash. Red Hat rates this important (CVSS 8.8). Weakness: CWE-120. Affected package(s): webkit2gtk3, webkitgtk4. Resolved in Red Hat advisory RHSA-2026:19206 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle 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 8 more.
High [CVE-2025-43433] Processing maliciously crafted web content may lead to memory corruption
Processing maliciously crafted web content may lead to memory corruption. Red Hat rates this important (CVSS 8.8). Weakness: CWE-120. Affected package(s): webkitgtk4, webkit2gtk3. Resolved in Red Hat advisory RHSA-2025:23743 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle 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 9 more.
High [CVE-2025-43438] Processing maliciously crafted web content may lead to an unexpected Safari crash
Processing maliciously crafted web content may lead to an unexpected Safari crash. Red Hat rates this important (CVSS 8.8). Weakness: CWE-416. Affected package(s): webkitgtk4, webkit2gtk3. Resolved in Red Hat advisory RHSA-2025:23743 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle 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 9 more.
High [CVE-2025-43441] Processing maliciously crafted web content may lead to an unexpected process crash
Processing maliciously crafted web content may lead to an unexpected process crash. Red Hat rates this important (CVSS 8.8). Weakness: CWE-120. Affected package(s): webkitgtk4, webkit2gtk3. Resolved in Red Hat advisory RHSA-2025:23743 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle 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 9 more.
High [CVE-2025-43457] Processing maliciously crafted web content may lead to an unexpected Safari crash
Processing maliciously crafted web content may lead to an unexpected Safari crash. Red Hat rates this important (CVSS 8.8). Weakness: CWE-416. Affected package(s): webkit2gtk3, webkitgtk4. Resolved in Red Hat advisory RHSA-2026:19206 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle 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 8 more.
High [CVE-2025-43511] Processing maliciously crafted web content may lead to an unexpected process crash
Processing maliciously crafted web content may lead to an unexpected process crash. Red Hat rates this important (CVSS 8.8). Weakness: CWE-416. Affected package(s): webkit2gtk3, webkitgtk4. Resolved in Red Hat advisory RHSA-2026:19206 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle 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 8 more.
High [CVE-2026-20652] A remote attacker may be able to cause a denial-of-service
A remote attacker may be able to cause a denial-of-service. Red Hat rates this important (CVSS 7.5). Weakness: CWE-120. Affected package(s): webkit2gtk3, webkitgtk4. Resolved in Red Hat advisory RHSA-2026:19206 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle 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 8 more.
High [CVE-2026-4451] Insufficient validation of untrusted input in Navigation
Insufficient validation of untrusted input in Navigation. Red Hat rates this important (CVSS 8.2). Weakness: CWE-1286. 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-2026-4453] Integer overflow in Dawn
Integer overflow in Dawn. Red Hat rates this important (CVSS 7.4). Weakness: CWE-190. 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-2026-4455] Heap buffer overflow in PDFium
Heap buffer overflow in PDFium. 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.