Red Hat Linux Security Advisories & CVEs
4891 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-2026-6384] Arbitrary code execution or denial of service via buffer overflow in GIF image processing
Arbitrary code execution or denial of service via buffer overflow in GIF image processing. Red Hat rates this important (CVSS 7.3). 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 6; Red Hat Enterprise Linux 8.
High [CVE-2026-33805] @fastify/reply-from: @fastify/http-proxy: Fastify Reply From and HTTP Proxy: Security bypass via Connection header manipulation
@fastify/reply-from: @fastify/http-proxy: Fastify Reply From and HTTP Proxy: Security bypass via Connection header manipulation. Red Hat rates this important (CVSS 7.4). Weakness: CWE-444. Affected package(s): devspaces/dashboard-rhel9:1776795511. Resolved in Red Hat advisory RHSA-2026:10175 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift Dev Spaces 3.27; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-3505] unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion
unbounded PGP AEAD chunk size leads to pre-auth resource exhaustion. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected package(s): eap8-bouncycastle, bcpg-jdk18on, bcpg-fips, bcpg-jdk15on. Resolved in Red Hat advisory RHSA-2026:18054 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8; Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9; Red Hat AMQ Clients; Red Hat build of Apache Camel 4 for Quarkus 3; and 19 more.
High [CVE-2026-5588] PKIX draft CompositeVerifier accepts empty signature sequence as valid
PKIX draft CompositeVerifier accepts empty signature sequence as valid. Red Hat rates this important (CVSS 7.5). Weakness: CWE-347. Affected package(s): eap8-bouncycastle, devspaces/openvsx-rhel9:1779528224, eap8-guava-failureaccess, eap8-activemq-artemis, eap8-netty-transport-native-epoll, eap8-reactivex-rxjava. Resolved in Red Hat advisory RHSA-2026:14276 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8; Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9; Red Hat OpenShift Dev Spaces 3.28; Red Hat build of Apache Camel 4 for Quarkus 3; and 22 more.
High [CVE-2026-5598] private key leakage via non-constant time comparisons
private key leakage via non-constant time comparisons. Red Hat rates this important (CVSS 7.5). Weakness: CWE-385. Affected package(s): eap8-bouncycastle, bcprov-jdk12, eap7-bouncycastle. Resolved in Red Hat advisory RHSA-2026:18054 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7; Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8; Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9; Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8; and 3 more.
High [CVE-2025-14813] GOSTCTR implementation unable to process more than 255 blocks correctly
GOSTCTR implementation unable to process more than 255 blocks correctly. Red Hat rates this important (CVSS 7.5). Weakness: CWE-327. Affected package(s): bcprov-jdk15to18, eap8-bouncycastle, devspaces/openvsx-rhel9:1779528224, bcprov-ext-jdk15on, bcprov-ext-jdk18on, devspaces/pluginregistry-rhel9:1779359423. Resolved in Red Hat advisory RHSA-2026:14276 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14; Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8; Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9; Red Hat OpenShift AI 2.25; and 28 more.
High [CVE-2026-33806] Schema validation bypass via malformed Content-Type header
Schema validation bypass via malformed Content-Type header. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1289. 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-2026-6358] Use after free in XR
Use after free in XR. Red Hat rates this important (CVSS 8.8). Weakness: CWE-125. 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-2026-6300] Use after free in CSS
Use after free in CSS. Red Hat rates this important (CVSS 8.8). 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-2026-6314] Out of bounds write in GPU
Out of bounds write in GPU. Red Hat rates this important (CVSS 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-2026-6302] Use after free in Video
Use after free in Video. Red Hat rates this important (CVSS 8.8). 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-2026-6297] Use after free in Proxy
Use after free in Proxy. Red Hat rates this important (CVSS 8.3). 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-2026-6298] Heap buffer overflow in Skia
Heap buffer overflow in Skia. Red Hat rates this important (CVSS 7.4). 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-2026-6307] Type Confusion in Turbofan
Type Confusion in Turbofan. Red Hat rates this important (CVSS 8.8). Weakness: CWE-843. 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-2026-6361] Heap buffer overflow in PDFium
Heap buffer overflow in PDFium. Red Hat rates this important (CVSS 8.8). Weakness: CWE-120. 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-2026-6859] Arbitrary code execution due to hardcoded `trust_remote_code=True`
Arbitrary code execution due to hardcoded `trust_remote_code=True`. Red Hat rates this important (CVSS 8.8). Weakness: CWE-829. 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 AI (RHEL AI) 3.
High [CVE-2026-33414] Arbitrary code execution via command injection in HyperV backend
Arbitrary code execution via command injection in HyperV backend. Red Hat rates this important (CVSS 8.8). Weakness: CWE-94. Affected package(s): podman-main. Resolved in Red Hat advisory RHSA-2026:8211 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Hardened Images.
High [CVE-2026-33023] Code execution via crafted image due to use-after-free vulnerability
Code execution via crafted image due to use-after-free vulnerability. Red Hat rates this important (CVSS 7.8). 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-2026-32178] SMTP Command Injection and Header Injection via MailAddress parsing flaw
SMTP Command Injection and Header Injection via MailAddress parsing flaw. Red Hat rates this important (CVSS 7.5). Weakness: CWE-138. Affected package(s): dotnet8.0, dotnet10.0, dotnet8, dotnet9.0, dotnet9, dotnet10. Resolved in Red Hat advisory RHSA-2026:9080 — 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 Extended Update Support; Red Hat Enterprise Linux 9.6 Extended Update Support; and 1 more.
High [CVE-2026-26171] .NET: Security Bypass and Denial of Service Vulnerability
.NET: Security Bypass and Denial of Service Vulnerability. Red Hat rates this important (CVSS 7.5). Weakness: CWE-776. Affected package(s): dotnet8.0, dotnet10.0, dotnet8, dotnet9.0, dotnet9, dotnet10. Resolved in Red Hat advisory RHSA-2026:9080 — 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 Extended Update Support; Red Hat Enterprise Linux 9.6 Extended Update Support; and 1 more.