Red Hat Linux Red Hat Enterprise Linux Vulnerabilities & Security Advisories
1223 advisories tracked · Red Hat Security Data API · 3 listed in the CISA Known Exploited Vulnerabilities catalog
Every row below is a published Red Hat Linux advisory that VulniPulse classified as Red Hat Enterprise Linux, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 31 critical, 795 high, 378 medium, 19 low.
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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 Red Hat Enterprise Linux advisories
High [CVE-2026-6749] Information disclosure due to uninitialized memory in the Graphics: Canvas2D component
Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. Red Hat rates this important (CVSS 7.5). Weakness: CWE-824. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:10757 — 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 9 more.
High [CVE-2026-6747] Use-after-free in the WebRTC component
Use-after-free in the WebRTC component. Red Hat rates this important (CVSS 7.5). Weakness: CWE-825. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:10757 — 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 9 more.
High [CVE-2026-6746] Use-after-free in the DOM: Core & HTML component
Use-after-free in the DOM: Core & HTML component. Red Hat rates this important (CVSS 7.5). Weakness: CWE-825. Affected package(s): thunderbird, firefox. Resolved in Red Hat advisory RHSA-2026:10757 — 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 9 more.
Medium [CVE-2026-4367] Denial of Service via out-of-bounds read in XPM file parsing
Denial of Service via out-of-bounds read in XPM file parsing. Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-125. Affected package(s): libxpm-main. Resolved in Red Hat advisory RHSA-2026:30354 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 2 more.
High [CVE-2026-40170] Denial of service via stack buffer overflow during QUIC handshake
Denial of service via stack buffer overflow during QUIC handshake. Red Hat rates this important (CVSS 7.5). Weakness: CWE-120. Affected package(s): samba, ngtcp2-main. Resolved in Red Hat advisory RHSA-2026:22963 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Hardened Images.
High [CVE-2026-41082] path traversal via the .install field
path traversal via the.install field. Red Hat rates this important (CVSS 7.1). Weakness: CWE-24. 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 10.
High [CVE-2026-41035] Use-after-free vulnerability in extended attribute handling
Use-after-free vulnerability in extended attribute handling. Red Hat rates this important (CVSS 7.4). Weakness: CWE-805. Affected package(s): rsync, rhcos, discovery/discovery-ui-rhel9:1782166952. Resolved in Red Hat advisory RHSA-2026:25044 — 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 6 Extended Lifecycle Support - EXTENSION; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 17 more.
High [CVE-2026-12912] Heap-based buffer overflow via crafted PixarLog-compressed TIFF image
Heap-based buffer overflow via crafted PixarLog-compressed TIFF image. Red Hat rates this important (CVSS 7.3). Weakness: CWE-122. Affected package(s): libtiff-main. Resolved in Red Hat advisory RHSA-2026:34890 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more.
High [CVE-2026-40192] Denial of Service via decompression bomb in FITS image processing
Denial of Service via decompression bomb in FITS image processing. Red Hat rates this important (CVSS 7.5). Weakness: CWE-409. Affected package(s): ansible-automation-platform, rhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9:1778263054, rhelai3/bootc-rocm-rhel9:1778666124, rhaiis/vllm-rocm-rhel9:1778244531, rhoai/odh-workbench-jupyter-pytorch-rocm-py312-rhel9:1778677734, rhaiis/vllm-cuda-rhel9:1778274666. Resolved in Red Hat advisory RHSA-2026:23361 — 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 Satellite 6.16 for RHEL 8; and 18 more.
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-2026-3505] 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; OpenShift Developer Tools and Services; Red Hat AMQ Clients; and 6 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; OpenShift Developer Tools and Services; and 9 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 2 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 14 more.
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.
Medium [CVE-2026-0636] LDAP injection vulnerability in LDAPStoreHelper.java
LDAP injection vulnerability in LDAPStoreHelper.java. Red Hat rates this important (CVSS 6.5). Weakness: CWE-90. 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 Dev Spaces 3.28; and 11 more.
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.
High [CVE-2026-32203] .NET: Denial of Service via stack overflow
.NET: Denial of Service via stack overflow. Red Hat rates this important (CVSS 7.5). Weakness: CWE-787. 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-2026-33116] .NET: Denial of Service via Infinite Recursion in XmlDecryptionTransform
.NET: Denial of Service via Infinite Recursion in XmlDecryptionTransform. 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.