Red Hat Linux Security Advisories & CVEs
5295 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 Linux 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 Linux advisories
High [CVE-2026-12975] Unhardened SAXParser in content-type detection leads to blind XXE / SSRF / billion-laughs DoS
Unhardened SAXParser in content-type detection leads to blind XXE / SSRF / billion-laughs DoS. Red Hat rates this important (CVSS 8.5). Weakness: CWE-611. 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 build of Apicurio Registry 3.
High [CVE-2026-12992] SSRF via wsdl4j import dereference in WSDL FULL validation
SSRF via wsdl4j import dereference in WSDL FULL validation. Red Hat rates this important (CVSS 7.4). Weakness: CWE-918. 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 build of Apicurio Registry 3.
High [CVE-2026-11837] ansible.posix authorized_key: local privilege escalation via symlink-following chown
ansible.posix authorized_key: local privilege escalation via symlink-following chown. Red Hat rates this important (CVSS 7.3). Weakness: CWE-59. 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 8; Red Hat OpenStack Platform 17.1; Red Hat OpenStack Platform 18.0.
High [CVE-2026-54099] WICD CSR extra-Organization allows privilege escalation to system:masters
WICD CSR extra-Organization allows privilege escalation to system:masters. Red Hat rates this important (CVSS 8.8). Weakness: CWE-269. 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 OpenShift Container Platform 4; Red Hat OpenShift for Windows Containers 10.22.
High [CVE-2026-54100] SSH host key not verified enables credential theft
SSH host key not verified enables credential theft. Red Hat rates this important (CVSS 8.3). Weakness: CWE-295. 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 OpenShift Container Platform 4; Red Hat OpenShift for Windows Containers 10.22.
Medium [CVE-2026-46692] Heap buffer over-write via `magick -distribute-cache` service connection
Heap buffer over-write via `magick -distribute-cache` service connection. Red Hat rates this moderate (CVSS 5.9). Weakness: CWE-787. Affected package(s): ImageMagick. Resolved in Red Hat advisory RHSA-2026:32961 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 7.
Medium [CVE-2026-11850] integer underflow in berval2tl_data() leads to heap out-of-bounds read
integer underflow in berval2tl_data() leads to heap out-of-bounds read. Red Hat rates this moderate (CVSS 5). Weakness: CWE-191. Affected package(s): krb5-main. Resolved in Red Hat advisory RHSA-2026:25520 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Critical [CVE-2026-45445] AES-OCB IV Ignored on EVP_Cipher() Path
AES-OCB IV Ignored on EVP_Cipher() Path. Red Hat rates this moderate (CVSS 9.1). Weakness: CWE-1204. 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-2026-41731] 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 product named by the advisory: Red Hat Trusted Artifact Signer 1.4.
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 10; 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; and 4 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 4 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.