Red Hat Linux Security Advisories & CVEs
4426 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-2026-101044] Arbitrary file creation outside project directory via lockfile path traversal
Arbitrary file creation outside project directory via lockfile path traversal. Red Hat rates this important (CVSS 7.1). Weakness: CWE-22. Affected products named by the advisory: Red Hat AMQ Broker 7; Red Hat Build of Keycloak; Red Hat OpenShift GitOps.
High [CVE-2026-101043] Information disclosure via environment variable expansion in proxy settings
Information disclosure via environment variable expansion in proxy settings. Red Hat rates this important (CVSS 7.4). Weakness: CWE-201. Affected products named by the advisory: Red Hat AMQ Broker 7; Red Hat Build of Keycloak; Red Hat OpenShift GitOps.
High [CVE-2026-100723] Information disclosure via zlib shared buffer pool
Information disclosure via zlib shared buffer pool. Red Hat rates this important (CVSS 7.5). Weakness: CWE-653.
High [CVE-2026-100700] Denial of Service via regular expression backtracking in addressparser
Denial of Service via regular expression backtracking in addressparser. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1333. Affected products named by the advisory: Red Hat Developer Hub; Red Hat Enterprise Linux 10; Self-service automation portal 2; Red Hat package: grafana.
High [CVE-2026-100665] Hostname verification bypass via incomplete QUIC certificate validation
Hostname verification bypass via incomplete QUIC certificate validation. Red Hat rates this important (CVSS 7.5). Weakness: CWE-295. Affected product named by the advisory: Red Hat OpenShift Dev Spaces.
High [CVE-2026-100666] HTTP response desynchronization via HttpServerCodec
HTTP response desynchronization via HttpServerCodec. Red Hat rates this important (CVSS 7.3). Weakness: CWE-444. Affected products named by the advisory: Exploit Intelligence; OpenShift Serverless; Red Hat AMQ Clients; Red Hat build of Apache Camel 4 for Quarkus 3; and 15 more. Affected products named by the advisory: Red Hat build of Apache Camel for Spring Boot 4; Red Hat build of Apicurio Registry 3; Red Hat build of Debezium 3; Red Hat Build of Keycloak; and 11 more.
High [CVE-2026-100664] Security bypass via HTTP Host header authority confusion
Security bypass via HTTP Host header authority confusion. Red Hat rates this important (CVSS 7.5). Weakness: CWE-444. Affected product named by the advisory: Red Hat OpenShift Dev Spaces.
High [CVE-2026-100663] Security policy bypass via improper HTTP/1 to HTTP/3 CONNECT request translation
Security policy bypass via improper HTTP/1 to HTTP/3 CONNECT request translation. Red Hat rates this important (CVSS 7.5). Weakness: CWE-444. Affected product named by the advisory: Red Hat OpenShift Dev Spaces.
High [CVE-2026-100661] Denial of Service via unbounded accumulation in QPACK integer decoder
Denial of Service via unbounded accumulation in QPACK integer decoder. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected products named by the advisory: Red Hat OpenShift AI (RHOAI); Red Hat OpenShift Dev Spaces.
High [CVE-2026-100662] Denial of Service via unbounded memory allocation in QPACK stream decoder
Denial of Service via unbounded memory allocation in QPACK stream decoder. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected product named by the advisory: Red Hat OpenShift Dev Spaces.
High [CVE-2026-100660] Denial of Service via unbounded QPACK encoder memory retention
Denial of Service via unbounded QPACK encoder memory retention. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected product named by the advisory: Red Hat OpenShift Dev Spaces.
High [CVE-2026-100657] Denial of Service via memory leak during frame decoding
Denial of Service via memory leak during frame decoding. Red Hat rates this important (CVSS 7.5). Weakness: CWE-772. Affected products named by the advisory: Red Hat build of Apache Camel for Spring Boot 4; Red Hat JBoss Enterprise Application Platform 7; Red Hat Single Sign-On 7.
High [CVE-2026-100656] Denial of Service via unbounded queue growth during HTTP request pipelining
Denial of Service via unbounded queue growth during HTTP request pipelining. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected products named by the advisory: Exploit Intelligence; OpenShift Serverless; Red Hat AMQ Broker 7; Red Hat AMQ Clients; and 15 more. 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 11 more.
High [CVE-2026-100655] Denial of Service via unbounded SPDY concurrent streams
Denial of Service via unbounded SPDY concurrent streams. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected products named by the advisory: Exploit Intelligence; OpenShift Serverless; Red Hat build of Apache Camel for Spring Boot 4; Red Hat build of Apicurio Registry 3; and 11 more. Affected products named by the advisory: Red Hat build of Debezium 3; Red Hat Build of Keycloak; Red Hat Data Grid 8; Red Hat Enterprise Linux AI (RHEL AI) 3; and 7 more.
High [CVE-2026-100652] Denial of Service via out-of-bounds stop token IDs
Denial of Service via out-of-bounds stop token IDs. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1285. Affected products named by the advisory: Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-100650] Denial of Service via unbounded media ingestion
Denial of Service via unbounded media ingestion. Red Hat rates this important (CVSS 7.5). Weakness: CWE-770. Affected products named by the advisory: Red Hat AI Inference Server; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat OpenShift AI (RHOAI).
High [CVE-2026-100419] Arbitrary code execution via symlink manipulation during checkout
Arbitrary code execution via symlink manipulation during checkout. Red Hat rates this moderate (CVSS 7). Weakness: CWE-59. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux AI (RHEL AI) 3; Red Hat package: igvm; and 1 more. Affected products named by the advisory: Red Hat package: rust.
High [CVE-2026-91765] Denial of Service via unbounded recursion in SOAP parser
Denial of Service via unbounded recursion in SOAP parser. Red Hat rates this important (CVSS 7.5). Weakness: CWE-674. Red Hat lists fixing advisory RHSA-2026:70720 with package php-main-8.5.11-2.hum1. 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 3 more. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat package: php8.4.
High [CVE-2026-100310] Privilege escalation via LIBEXTRACTOR_PREFIX environment variable
Privilege escalation via LIBEXTRACTOR_PREFIX environment variable. Red Hat rates this moderate (CVSS 7). Weakness: CWE-426.
High [CVE-2026-89032] Information disclosure via semantic cache metadata mismatch
Information disclosure via semantic cache metadata mismatch. Red Hat rates this important (CVSS 7.7). Weakness: CWE-524. Affected products named by the advisory: Lightspeed Core; Red Hat Ansible Automation Platform 2; Red Hat OpenShift AI (RHOAI).