Red Hat Linux Security Advisories & CVEs
3067 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-2026-41731] Spring for Apache Kafka: Arbitrary code execution via insecure deserialization of crafted header values
Spring for Apache Kafka: Arbitrary code execution via insecure deserialization of crafted header values. Red Hat rates this important (CVSS 8.1). 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: Red Hat Fuse 7; Red Hat JBoss Enterprise Application Platform Expansion Pack.
High [CVE-2025-71319] Denial of Service due to infinite loop when processing specially crafted images.
Denial of Service due to infinite loop when processing specially crafted images.. Red Hat rates this important (CVSS 7.5). Weakness: CWE-835. Affected package(s): discovery/discovery-ui-rhel9:1782756541. Resolved in Red Hat advisory RHSA-2026:33313 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Discovery 2; Red Hat Trusted Artifact Signer 1.4; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8.
High [CVE-2026-45591] Denial of Service via uncontrolled resource consumption
Denial of Service via uncontrolled resource consumption. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected package(s): dotnet8, dotnet8.0, dotnet9.0, dotnet9, dotnet10.0, dotnet10. Resolved in Red Hat advisory RHSA-2026:25110 — 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-2026-45490] .NET SDK workload elevate: arbitrary file creation/truncation via LogFile named pipe.
.NET SDK workload elevate: arbitrary file creation/truncation via LogFile named pipe.. Red Hat rates this important (CVSS 7.8). Weakness: CWE-266. 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-2026-42573] Cross-Site Scripting via DOM Clobbering
Cross-Site Scripting via DOM Clobbering. Red Hat rates this important (CVSS 8.1). Weakness: CWE-79. 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-2026-42570] Excessive memory consumption via deserialization of sparse arrays
Excessive memory consumption via deserialization of sparse arrays. 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 Trusted Artifact Signer 1.4; Red Hat Enterprise Linux 10.
High [CVE-2025-10263] Privilege escalation or information disclosure via writes to higher exception level resources
Privilege escalation or information disclosure via writes to higher exception level resources. Red Hat rates this important (CVSS 8.4). Weakness: CWE-266. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:34911 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux for NVIDIA 26; Red Hat OpenShift Container Platform 4.22; 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 14 more.
High [CVE-2026-52903] YAML safe_load production fallback to unsafe_load enables RCE via deserialization
YAML safe_load production fallback to unsafe_load enables RCE via deserialization. Red Hat rates this important (CVSS 8.8). Weakness: CWE-502. 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-2026-9698] Buffer overflow in error handling can lead to arbitrary code execution
Buffer overflow in error handling can lead to arbitrary code execution. Red Hat rates this important (CVSS 8.2). Weakness: CWE-120. 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 AppStream (v. 10); Red Hat Enterprise Linux AppStream (v. 8); Red Hat Enterprise Linux AppStream (v. 9); Red Hat Enterprise Linux 6; and 5 more.
High [CVE-2026-40984] Denial of Service via specially crafted HTTP requests
Denial of Service via specially crafted HTTP requests. 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 AMQ Broker 7; Red Hat AMQ Clients; Red Hat build of Apache Camel 4 for Quarkus 3; Red Hat build of Apache Camel - HawtIO 4; and 10 more.
High [CVE-2026-40983] Denial of Service via specially crafted gRPC requests
Denial of Service via specially crafted gRPC requests. 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 AMQ Broker 7; Red Hat AMQ Clients; Red Hat build of Apache Camel 4 for Quarkus 3; Red Hat build of Apache Camel - HawtIO 4; and 7 more.
High [CVE-2026-34182] CMS AuthEnvelopedData Processing May Accept Forged Messages
CMS AuthEnvelopedData Processing May Accept Forged Messages. Red Hat rates this moderate (CVSS 7.4). Weakness: CWE-130. Affected package(s): insights-proxy/insights-proxy-container-rhel9:1782890503, rhui5/haproxy-rhel9:1781525671, openssl, rhui5/installer-rhel9:1781525693, rhui5/cds-rhel9:1781525684, discovery/discovery-ui-rhel9:1782166952. Resolved in Red Hat advisory RHSA-2026:29197 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
High [CVE-2026-34183] Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler
Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-770. Affected package(s): insights-proxy/insights-proxy-container-rhel9:1782890503, rhui5/haproxy-rhel9:1781525671, openssl, rhui5/installer-rhel9:1781525693, rhui5/cds-rhel9:1781525684, discovery/discovery-ui-rhel9:1782166952. Resolved in Red Hat advisory RHSA-2026:29197 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9.
High [CVE-2026-45447] Heap Use-After-Free in OpenSSL PKCS7_verify()
Heap Use-After-Free in OpenSSL PKCS7_verify(). Red Hat rates this important (CVSS 8.1). Weakness: CWE-825. Affected package(s): insights-proxy/insights-proxy-container-rhel9:1782890503, rhui5/haproxy-rhel9:1781525671, openssl, compat-openssl11, rhui5/installer-rhel9:1781525693, rhui5/cds-rhel9:1781525684. Resolved in Red Hat advisory RHSA-2026:26275 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux AppStream (v. 10); Red Hat Enterprise Linux AppStream (v. 8); Red Hat Enterprise Linux AppStream E4S (v.8.8); Red Hat Enterprise Linux AppStream TUS (v.8.8); and 24 more.
High [CVE-2026-46316] Drop the translation cache reference only for the erased entry
Drop the translation cache reference only for the erased entry. Red Hat rates this important (CVSS 7). Weakness: CWE-911. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:34911 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux AppStream (v. 10); Red Hat Enterprise Linux AppStream EUS (v.9.6); Red Hat Enterprise Linux AppStream (v. 9); Red Hat Enterprise Linux BaseOS (v. 10); and 18 more.
High [CVE-2026-48913] Apache HTTP Server mod_http2: Use After Free vulnerability allows arbitrary code execution or denial of service.
Apache HTTP Server mod_http2: Use After Free vulnerability allows arbitrary code execution or denial of service.. Red Hat rates this moderate (CVSS 7.3). Weakness: CWE-825. Affected package(s): mod_http2. Resolved in Red Hat advisory RHSA-2026:34355 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1.
High [CVE-2026-42536] Heap-based Buffer Overflow via untrusted content in mod_xml2enc
Heap-based Buffer Overflow via untrusted content in mod_xml2enc. Red Hat rates this important (CVSS 7.5). Weakness: CWE-120. Affected package(s): httpd. Resolved in Red Hat advisory RHSA-2026:34109 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 4 more.
High [CVE-2026-44185] Buffer Over-read via outbound OCSP requests to attacker-controlled server
Buffer Over-read via outbound OCSP requests to attacker-controlled server. Red Hat rates this important (CVSS 7.3). Weakness: CWE-125. Affected package(s): httpd. Resolved in Red Hat advisory RHSA-2026:34109 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 3 more.
High [CVE-2026-34355] Buffer overflow in mod_proxy_html allows security bypass
Buffer overflow in mod_proxy_html allows security bypass. Red Hat rates this important (CVSS 7.5). Weakness: CWE-120. Affected package(s): httpd. Resolved in Red Hat advisory RHSA-2026:34109 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 3 more.
High [CVE-2026-44631] Denial of Service via crafted regular expressions
Denial of Service via crafted regular expressions. Red Hat rates this moderate (CVSS 7.7). Weakness: CWE-124. Affected package(s): httpd. Resolved in Red Hat advisory RHSA-2026:34109 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 1.