Red Hat Linux Security Advisories & Vulnerabilities
16036 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited sources checked less often
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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, so keep the system patched. This is the release's advisory history, not a per-package scan.
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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-2026-34059] heap-based buffer over-read and memory disclosure in ajp_parse_data()
heap-based buffer over-read and memory disclosure in ajp_parse_data(). Red Hat rates this moderate (CVSS 8.2). Weakness: CWE-126. Affected package(s): httpd, httpd:2.4, jbcs-httpd24-httpd, httpd-main, mod_proxy_ajp.so. Resolved in Red Hat advisory RHSA-2026:27200 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
High [CVE-2026-33846] Denial of Service via heap buffer overflow in DTLS handshake fragment reassembly
Denial of Service via heap buffer overflow in DTLS handshake fragment reassembly. Red Hat rates this important (CVSS 7.5). Weakness: CWE-130. Affected package(s): rhui5/installer-rhel9:1781525693, libtasn1, gnutls, rhui5/cds-rhel9:1781525684, discovery/discovery-ui-rhel9:1782166952, discovery/discovery-server-rhel9:1782159791. 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 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 48 more.
High [CVE-2026-7737] osrg GoBGP: Denial of service via out-of-bounds read in BMP Parser
osrg GoBGP: Denial of service via out-of-bounds read in BMP Parser. Red Hat rates this important (CVSS 7.5). 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-2026-7736] osrg GoBGP: Integer underflow via manipulation in parseRibEntry function
osrg GoBGP: Integer underflow via manipulation in parseRibEntry function. Red Hat rates this important (CVSS 7.5). Weakness: CWE-191. 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-2026-39852] io.quarkus:quarkus-vertx-http: io.quarkus:quarkus-vertx-http: Authorization bypass via semicolons in HTTP requests
io.quarkus:quarkus-vertx-http: io.quarkus:quarkus-vertx-http: Authorization bypass via semicolons in HTTP requests. Red Hat rates this important (CVSS 8.2). Weakness: CWE-551. Affected package(s): cryostat/jfr-datasource-rhel9:4.2.0, quarkus-vertx-http, cryostat/cryostat-reports-rhel9:4.2.0, cryostat/cryostat-rhel9:4.2.0. Resolved in Red Hat advisory RHSA-2026:25089 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Cryostat 4 on RHEL 9; Red Hat Build of Apache Camel 4.14 for Quarkus 3.27; Red Hat build of Quarkus 3.20.6.SP1; OpenShift Serverless; and 8 more.
High [CVE-2025-70069] Denial of Service via FBXConverter.cpp and ConvertMeshMultiMaterial() method
Denial of Service via FBXConverter.cpp and ConvertMeshMultiMaterial() method. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1284. 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-2025-70071] Denial of Service via FBXParser.cpp ParseVectorDataArray() function
Denial of Service via FBXParser.cpp ParseVectorDataArray() function. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1284. 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-2026-37459] denial of service via crafted BGP UPDATE message
denial of service via crafted BGP UPDATE message. Red Hat rates this important (CVSS 7.5). Weakness: CWE-191. Affected package(s): frr10, frr. Resolved in Red Hat advisory RHSA-2026:24370 — 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 Enterprise Linux 8.
High [CVE-2026-54228] TOCTOU race condition in abrt-dbus SetElement allows arbitrary file writes to dump directories
TOCTOU race condition in abrt-dbus SetElement allows arbitrary file writes to dump directories. Red Hat rates this important (CVSS 7.8). Weakness: CWE-367. 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 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 3 more.
High [CVE-2026-54229] ChownProblemDir succeeds during active post-create event processing due to inadequate locking
ChownProblemDir succeeds during active post-create event processing due to inadequate locking. Red Hat rates this important (CVSS 7). Weakness: CWE-362. 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 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 3 more.
High [CVE-2026-54230] event handler scripts follow symlinks when writing output files, allowing arbitrary file overwrites
event handler scripts follow symlinks when writing output files, allowing arbitrary file overwrites. Red Hat rates this important (CVSS 7). 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 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.8 Telecommunications Update Service; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions; and 3 more.
Medium [CVE-2026-33006] timing attack allows a bypass of digest authentication
timing attack allows a bypass of digest authentication. Red Hat rates this moderate (CVSS 4.8). Weakness: CWE-208. Affected package(s): httpd-main. Resolved in Red Hat advisory RHSA-2026:17080 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-33007] NULL pointer dereference can cause a child process crash
NULL pointer dereference can cause a child process crash. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-476. Affected package(s): httpd, mod_authn_socache.so, httpd:2.4, jbcs-httpd24-httpd, httpd-main. Resolved in Red Hat advisory RHSA-2026:27200 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7.
Medium [CVE-2026-33523] HTTP response splitting forwarding malicious status line
HTTP response splitting forwarding malicious status line. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-93. Affected package(s): httpd-main. Resolved in Red Hat advisory RHSA-2026:17080 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-24072] Privilege Escalation via .htaccess file manipulation
Privilege Escalation via.htaccess file manipulation. Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-73. Affected package(s): httpd-main. Resolved in Red Hat advisory RHSA-2026:13938 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Critical [CVE-2026-43824] Information disclosure via ServerSideDiff allows reading Kubernetes Secret data
Information disclosure via ServerSideDiff allows reading Kubernetes Secret data. Red Hat rates this important (CVSS 9.6). Weakness: CWE-312. 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 OpenShift GitOps.
Critical [CVE-2026-7598] integer overflow via large username or password arguments
integer overflow via large username or password arguments. Red Hat rates this important (CVSS 9.1). Weakness: CWE-190. Affected package(s): libssh2-main, rust-main. Resolved in Red Hat advisory RHSA-2026:7021 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Trusted Profile Analyzer.
High [CVE-2026-39805] HTTP Request Smuggling via Duplicate Content-Length Headers
HTTP Request Smuggling via Duplicate Content-Length Headers. Red Hat rates this important (CVSS 7.4). Weakness: CWE-444. 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-2026-39804] Denial of Service due to memory exhaustion via WebSocket permessage-deflate compression
Denial of Service due to memory exhaustion via WebSocket permessage-deflate compression. 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 Enterprise Linux.
High [CVE-2026-42786] Denial of Service via uncontrolled memory growth in WebSocket connections
Denial of Service via uncontrolled memory growth in WebSocket connections. 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 Enterprise Linux.
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