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
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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-2026-44289] Denial of Service via uncontrolled recursion in protobuf decoding
Denial of Service via uncontrolled recursion in protobuf decoding. 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: OpenShift Pipelines; Red Hat Build of Podman Desktop; Red Hat Ceph Storage 9; Red Hat Enterprise Linux 8; and 5 more.
High [CVE-2026-42945] Arbitrary Code Execution Vulnerability
Arbitrary Code Execution Vulnerability. Red Hat rates this critical (CVSS 8.1). Weakness: CWE-131. Affected package(s): odf4/ocs-client-console-rhel9:1779881302, satellite/iop-gateway-rhel9:1779706797, nginx, odf4/ocs-client-console-rhel9:1779879463, odf4/ocs-client-console-rhel9:1779972138, odf4/odf-console-rhel9:1779952279. Resolved in Red Hat advisory RHSA-2026:19371 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: NGINX Plus; NGINX Open Source; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; and 18 more.
High [CVE-2026-46300] "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel
"Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel. Red Hat rates this important (CVSS 7.8). Weakness: CWE-123. Affected package(s): rhcos, kernel-rt, kernel, openshift, kpatch-patch. 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 4.21; Red Hat OpenShift Container Platform 4.12; Red Hat OpenShift Container Platform 4.13; and 64 more.
Medium [CVE-2026-44431] Information disclosure via cross-origin redirects forwarding sensitive headers
Information disclosure via cross-origin redirects forwarding sensitive headers. Red Hat rates this moderate (CVSS 5.9). Weakness: CWE-201. Affected package(s): rhaiis/model-opt-cuda-rhel9:1782352950, rhaiis/vllm-spyre-rhel9:1782352919, satellite/iop-yuptoo-rhel9:1782380482, satellite/iop-insights-engine-rhel9:1782448455, satellite/iop-host-inventory-rhel9:1780414237, satellite/iop-puptoo-rhel9:1779792651. Resolved in Red Hat advisory RHSA-2026:26221 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8.
Medium [CVE-2026-40460] Authorization bypass via IP spoofing in HTTP/3 QUIC module
Authorization bypass via IP spoofing in HTTP/3 QUIC module. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-290. Affected package(s): nginx-main. Resolved in Red Hat advisory RHSA-2026:20351 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-7168] Information disclosure via incorrect Proxy-Authorization header reuse
Information disclosure via incorrect Proxy-Authorization header reuse. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-201. Affected package(s): curl-main. Resolved in Red Hat advisory RHSA-2026:19106 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
High [CVE-2026-44222] Denial of Service via malformed multimodal input or token injection
Denial of Service via malformed multimodal input or token injection. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1285. 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-2026-42338] Cross-site scripting via improper HTML escaping of untrusted input
Cross-site scripting via improper HTML escaping of untrusted input. Red Hat rates this important (CVSS 8.1). Weakness: CWE-79. Affected package(s): openshift-service-mesh/kiali-ossmc-rhel9:1782201851, openshift-service-mesh/kiali-ossmc-rhel9:1782231869, nodejs24, nodejs22, openshift-service-mesh/kiali-ossmc-rhel9:1782201894, openshift-service-mesh/kiali-ossmc-rhel9:1782201696. Resolved in Red Hat advisory RHSA-2026:33160 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Ansible Automation Platform 2.6; Red Hat Developer Hub 1.10; Red Hat Developer Hub 1.9; and 26 more.
High [CVE-2026-42899] .NET: infinite loop allows an attacker to cause a denial of service
.NET: infinite loop allows an attacker to cause a denial of service. Red Hat rates this important (CVSS 7.5). Weakness: CWE-835. Affected package(s): dotnet10.0, dotnet9.0, dotnet8.0, dotnet8, dotnet9, dotnet10. Resolved in Red Hat advisory RHSA-2026:21291 — 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; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; and 1 more.
High [CVE-2026-35433] .NET: improper input validation allows an attacker to elevate privileges locally
.NET: improper input validation allows an attacker to elevate privileges locally. Red Hat rates this important (CVSS 7.3). Weakness: CWE-20. 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-2026-32177] .NET: heap-based buffer overflow allows an attacker to elevate privileges locally
.NET: heap-based buffer overflow allows an attacker to elevate privileges locally. Red Hat rates this important (CVSS 7.3). Weakness: CWE-122. 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-2026-8401] Sandbox escape in the Profile Backup component
Sandbox escape in the Profile Backup component. Red Hat rates this important (CVSS 7.5). Weakness: CWE-653. 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 10.0 Extended Update Support; 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; and 7 more.
High [CVE-2026-42006] Denial of Service via excessive IMAP bracing
Denial of Service via excessive IMAP bracing. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. 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 10.0 Extended Update Support; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; and 7 more.
High [CVE-2026-27851] SQL/LDAP injection via incorrect safe filter interpretation with variable expansion
SQL/LDAP injection via incorrect safe filter interpretation with variable expansion. Red Hat rates this important (CVSS 7.4). Weakness: CWE-89. 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-2026-8391] Other issue in the JavaScript Engine component
Other issue in the JavaScript Engine component. Red Hat rates this important (CVSS 7.5). Weakness: CWE-475. 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 10.0 Extended Update Support; 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; and 7 more.
High [CVE-2026-8390] Use-after-free in the JavaScript: WebAssembly component
Use-after-free in the JavaScript: WebAssembly component. Red Hat rates this important (CVSS 7.5). Weakness: CWE-825. 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-2026-8388] Incorrect boundary conditions in the JavaScript Engine: JIT component
Incorrect boundary conditions in the JavaScript Engine: JIT component. Red Hat rates this important (CVSS 7.5). 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 10.0 Extended Update Support; 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; and 7 more.
High [CVE-2026-31228] Adversarial Robustness Toolbox (ART) Kubeflow: Remote code execution via unsanitized user input
Adversarial Robustness Toolbox (ART) Kubeflow: Remote code execution via unsanitized user input. Red Hat rates this important (CVSS 8.8). Weakness: CWE-94. 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 OpenShift AI (RHOAI).
High [CVE-2026-31230] Arbitrary Code Execution via Command-Line Argument Injection
Arbitrary Code Execution via Command-Line Argument Injection. Red Hat rates this important (CVSS 8.8). Weakness: CWE-94. 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 OpenShift AI (RHOAI).
High [CVE-2026-31236] llm CLI tool: Arbitrary code execution via code injection in --functions argument
llm CLI tool: Arbitrary code execution via code injection in --functions argument. Red Hat rates this important (CVSS 7.3). Weakness: CWE-94. 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.
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