Red Hat Linux Security Advisories & CVEs
11228 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
Medium [CVE-2026-93566] HTTP Request Smuggling due to control characters in the chunk-size line
HTTP Request Smuggling due to control characters in the chunk-size line. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-1035. 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 for Spring Boot 4; and 8 more. Affected products named by the advisory: Red Hat build of Apicurio Registry 3; Red Hat build of Debezium 3; Red Hat Build of Keycloak; Red Hat Data Grid 8; and 4 more.
Medium [CVE-2026-93653] unbounded CPU loop in SplashOutputDev::tilingPatternFill via unvalidated tiling-pattern repeat count (denial of service)
unbounded CPU loop in SplashOutputDev::tilingPatternFill via unvalidated tiling-pattern repeat count (denial of service). Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-606. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; and 4 more. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Hardened Images; Red Hat package: poppler; Red Hat package: compat-poppler022.
Medium [CVE-2026-93602] Certificate Revocation Check Bypass via Faulty CRL Logic
Certificate Revocation Check Bypass via Faulty CRL Logic. Red Hat rates this moderate (CVSS 4.4). Weakness: CWE-295. Affected products named by the advisory: Ansible Automation Orchestrator 2026; Confidential Cluster Operator; Confidential Compute Attestation; Logging Subsystem for Red Hat OpenShift; and 32 more. Affected products named by the advisory: Migration Toolkit for Applications 8; OpenShift Lightspeed; OpenShift Service Mesh 3; Pen Drive Powered by Red Hat Lightspeed; and 28 more.
Medium [CVE-2026-93589] Denial of Service via division by zero in FLIF encoder
Denial of Service via division by zero in FLIF encoder. Red Hat rates this moderate (CVSS 5.9). Weakness: CWE-369. Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat package: imagemagick.
Medium [CVE-2026-93492] HTTP/2 HpackEncoder DoS with large table size
HTTP/2 HpackEncoder DoS with large table size. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-1035. Affected products named by the advisory: Red Hat build of Apache Camel 4 for Quarkus 3; Red Hat build of Apache Camel for Spring Boot 4; Red Hat build of Apicurio Registry 3; Red Hat build of Debezium 3; and 3 more. Affected products named by the advisory: Red Hat Build of Keycloak; Red Hat Data Grid 8; Red Hat JBoss Enterprise Application Platform 8.
Medium [CVE-2026-93578] Missing Extended Key Usage (EKU) check in OCSP Client allows certificate revocation bypass
Missing Extended Key Usage (EKU) check in OCSP Client allows certificate revocation bypass. Red Hat rates this moderate (CVSS 5.9). Weakness: CWE-1035. Affected product named by the advisory: Red Hat build of Apache Camel for Spring Boot 4.
Medium [CVE-2026-93314] Remote integer overflow vulnerability
Remote integer overflow vulnerability. Red Hat rates this moderate (CVSS 6.3). Weakness: CWE-190. Red Hat lists fixing advisory RHSA-2026:58482 with package poppler-main-26.08.0-1.hum1. Affected product named by the advisory: Red Hat Hardened Images.
Medium [CVE-2026-93313] Remote integer overflow vulnerability
Remote integer overflow vulnerability. Red Hat rates this moderate (CVSS 6.3). Weakness: CWE-190. Red Hat lists fixing advisory RHSA-2026:71625 with package poppler-main-26.08.0-1.1.hum1. Affected product named by the advisory: Red Hat Hardened Images.
Medium [CVE-2026-93312] Denial of Service via null pointer dereference in JBIG2Stream::rewind function
Denial of Service via null pointer dereference in JBIG2Stream::rewind function. Red Hat rates this moderate (CVSS 4.3). Weakness: CWE-476. Red Hat lists fixing advisory RHSA-2026:58482 with package poppler-main-26.08.0-1.hum1. Affected product named by the advisory: Red Hat Hardened Images.
Medium [CVE-2026-93311] Denial of service via integer overflow in SampledFunction
Denial of service via integer overflow in SampledFunction. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-190. Affected product named by the advisory: Red Hat Hardened Images.
Low [CVE-2026-93841] Memory corruption via unvalidated prompt token IDs
Memory corruption via unvalidated prompt token IDs. Red Hat rates this low (CVSS 3.7). Weakness: CWE-787. Affected products named by the advisory: Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI).
Low [CVE-2026-91142] Integer overflow in `do_lastlog ` offset calculation can misaddress `lastlog` entries on ILP32 builds
Integer overflow in `do_lastlog()` offset calculation can misaddress `lastlog` entries on ILP32 builds. Red Hat rates this low (CVSS 3.6). Weakness: CWE-787. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat package: cockpit.
Low [CVE-2026-93676] Xdg-dbus-proxy: xdg-dbus-proxy: filtering for broadcast messages bypasses path/interface/member checks
xdg-dbus-proxy incorrectly filters D-Bus broadcast messages, bypassing configured path, interface, and member restrictions. This allows a sandboxed Flatpak application to intercept broadcast signals on the D-Bus session bus and AT-SPI bus that should be restricted, potentially exposing sensitive information to unauthorized applications. Red Hat severity: Low — CVSS 3.2 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N). Weakness: CWE-284. Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9 as not affected.
Low [CVE-2026-93601] Name Constraint Bypass in wildcard certificate validation
Name Constraint Bypass in wildcard certificate validation. Red Hat rates this low (CVSS 2.2). Weakness: CWE-1289. Affected products named by the advisory: Ansible Automation Orchestrator 2026; Confidential Cluster Operator; Confidential Compute Attestation; Logging Subsystem for Red Hat OpenShift; and 32 more. Affected products named by the advisory: Migration Toolkit for Applications 8; OpenShift Lightspeed; OpenShift Service Mesh 3; Pen Drive Powered by Red Hat Lightspeed; and 28 more.
Low [CVE-2026-93600] URI Name Constraint Bypass via X.509 Certificate Misissue
URI Name Constraint Bypass via X.509 Certificate Misissue. Red Hat rates this low (CVSS 2.2). Weakness: CWE-295. Affected products named by the advisory: Confidential Cluster Operator; Confidential Compute Attestation; Logging Subsystem for Red Hat OpenShift; Migration Toolkit for Applications 8; and 16 more. Affected products named by the advisory: OpenShift Lightspeed; OpenShift Service Mesh 3; Pen Drive Powered by Red Hat Lightspeed; Red Hat Ansible Automation Platform 2; and 12 more.
Low [CVE-2026-93590] Denial of Service via UHDR encoder policy bypass
Denial of Service via UHDR encoder policy bypass. Red Hat rates this low (CVSS 3.7). Weakness: CWE-131. Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat package: imagemagick.
Low [CVE-2026-93588] Denial of Service via Null Pointer Dereference in PNM Coder
Denial of Service via Null Pointer Dereference in PNM Coder. Red Hat rates this low (CVSS 3.1). Weakness: CWE-476. Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat package: imagemagick.
Low [CVE-2026-93586] Denial of Service via Use After Free in ImagesToBlob
Denial of Service via Use After Free in ImagesToBlob. Red Hat rates this low (CVSS 2.9). Weakness: CWE-825. Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat package: imagemagick.
Low [CVE-2026-93587] Local user can cause denial of service via policy bypass in image decoders
Local user can cause denial of service via policy bypass in image decoders. Red Hat rates this low (CVSS 3.3). Weakness: CWE-770. Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat package: imagemagick.
Critical [CVE-2026-92957] vm2 before 3.11.7 Authentication Bypass via node: Prefix
vm2 before 3.11.7 Authentication Bypass via node: Prefix. Red Hat rates this important (CVSS 9.9). Weakness: CWE-269. Red Hat lists fixing advisory RHSA-2026:76788 with package rhdh/red-hat-developer-hub-backstage-plugin-lightspeed-backend:1791242697, rhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend:1791251282. Affected products named by the advisory: Red Hat Developer Hub 1.10; Self-service automation portal 2.