Red Hat Linux Security Advisories & CVEs
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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 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
Low [CVE-2026-35189] Denial of Service via excessive memory allocation in CRL distribution point processing
Denial of Service via excessive memory allocation in CRL distribution point processing. Red Hat rates this low (CVSS 3.7). Weakness: CWE-770. Red Hat lists fixing advisory RHSA-2026:74162 with package openssl-main-3.5.9-0.1.hum1, openssl3-main-3.5.9-0.1.hum1. Affected products named by the advisory: Red Hat Developer Hub; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 15 more. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Hardened Images; Red Hat JBoss Core Services; and 11 more.
Low [CVE-2026-97027] Denial of service via unsanitized keys in exported Desktop Entry / D-Bus Service files
Denial of service via unsanitized keys in exported Desktop Entry / D-Bus Service files. Red Hat rates this low (CVSS 3.6). Weakness: CWE-20. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more. Affected products named by the advisory: Red Hat package: flatpak.
Low [CVE-2026-97026] World-writable temporary child repositories in system-helper cache path
World-writable temporary child repositories in system-helper cache path. Red Hat rates this low (CVSS 3.9). Weakness: CWE-378. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more. Affected products named by the advisory: Red Hat package: flatpak.
Low [CVE-2026-97025] World-readable OCI authentication token in system-helper cache path
World-readable OCI authentication token in system-helper cache path. Red Hat rates this low (CVSS 3.2). Weakness: CWE-378. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more. Affected products named by the advisory: Red Hat package: flatpak.
Low [CVE-2026-97399] Denial of Service via out-of-bounds read in strncasecmp
Denial of Service via out-of-bounds read in strncasecmp. Red Hat rates this low (CVSS 3.7). Weakness: CWE-125. 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 OpenShift Container Platform 4; Red Hat package: glibc; Red Hat package: compat-glibc.
Low [CVE-2026-101333] Unbounded metric series creation via idp tag on broker login endpoint
Unbounded metric series creation via idp tag on broker login endpoint. Red Hat rates this moderate (CVSS 3.7). Weakness: CWE-770. Affected product named by the advisory: Red Hat Build of Keycloak.
Low [CVE-2026-96284] Flatpak: flatpak: arbitrary read-access to files in the system-helper context via oci symlink following
A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control. Red Hat estimates the CVSSv3.1 vector of CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N. Exploitation requires the attacker to be a local, authenticated user able to trigger a system-wide OCI image import via the flatpak-system-helper D-Bus service (AV:L, PR:L). This depends on the uncommon, non-default environmental precondition that a system OCI repository is configured (AC:H). No interaction from another party is required (UI:N). The vulnerable and impacted components remain within the same overall flatpak client/helper security authority (S:U). While some host file content can leak via this symlink-following behavior, disclosure surfaces only through the attacker's own crafted import under the rarer system-OCI-repository precondition, rather than through a broadly repeatable read of arbitrary files (C:L). There is no integrity or availability impact (I:N/A:N). Red Hat severity: Low — CVSS 2.5 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-59. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.
Low [CVE-2026-96282] Flatpak: flatpak: extension metadata path traversal file existence oracle
A malicious Flatpak extension can probe the host filesystem to determine what files and directories exist at arbitrary paths, and host directory listings can be disclosed to sandboxed applications using the extension. Additionally, unvalidated extension metadata can cause extension content to be mounted at unintended locations inside the sandbox. Red Hat estimates the CVSSv3.1 vector of CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N. Exploitation requires a user to install a malicious Flatpak extension and use it with an application (AV:N, PR:N). The victim must specifically use a malicious extension in combination with a consuming application, and then launch that application (AC:H, UI:R). When Flatpak launches an application, it performs host-side file operations inside extension content directories using path-based APIs that follow symlinks without confinement; a malicious extension can place symlinks pointing at arbitrary host paths, which are followed both when checking for the.ref lock marker file and when iterating merge_dirs directories. These operations run at the invoking user's own privilege level rather than via the privileged system-helper (S:U). While the flaw allows probing for file/directory existence and disclosing filenames via reflected directory listings, no file contents are disclosed (C:N).
Low [CVE-2026-96283] Flatpak: flatpak: flatpak-system-helper cross-user cancelpull orphans another user's ongoing pull
By calling org.freedesktop. Flatpak. SystemHelper. CancelPull on another user's pull, the pull is not actually cancelled but removed from internal tracking, making it impossible for the owning user to stop it. Ongoing pulls cannot be stopped. Red Hat estimates the CVSSv3.1 vector of CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L. Exploitation requires the attacker to be a local, authenticated user on the same multi-user system as the victim, able to reach the org.freedesktop. Calling CancelPull on a pull ID belonging to another user removes that pull from the system-helper's internal tracking rather than actually cancelling it, and this requires no special preconditions beyond knowing/targeting another user's active pull, and no interaction from the victim (AC:L, UI:N). No data is disclosed or altered (C:N/I:N). The impact is a narrow availability effect: the targeted pull operation becomes untrackable and cannot subsequently be cancelled by its owner. This affects one specific in-progress operation rather than the system or service as a whole (A:L). Red Hat severity: Low — CVSS 3.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-862. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Affected products named by the advisory: Red Hat package: flatpak.
Low [CVE-2026-100649] Denial of service via sampler subclass decoder limit bypass
Denial of service via sampler subclass decoder limit bypass. Red Hat rates this low (CVSS 3.7). 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).
Low [CVE-2025-1218] Denial of Service via out-of-bounds read in mysqlnd wire protocol parser
Denial of Service via out-of-bounds read in mysqlnd wire protocol parser. Red Hat rates this low (CVSS 3.7). Weakness: CWE-125. 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.
Low [CVE-2026-67420] Unauthorized user impersonation via stale OAuth token refresh
Unauthorized user impersonation via stale OAuth token refresh. Red Hat rates this low (CVSS 3.1). Weakness: CWE-266. Red Hat lists fixing advisory RHSA-2026:67552 with package rabbitmq-server4-3-main-4.3.6-1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat OpenStack Platform 13 (Queens); Red Hat OpenStack Platform 16.2; Red Hat OpenStack Platform 17.1; and 1 more. Affected products named by the advisory: Red Hat OpenStack Platform 18.0.
Low [CVE-2026-96546] one-byte out-of-bounds heap read in the uncompressed DDS loader
one-byte out-of-bounds heap read in the uncompressed DDS loader. Red Hat rates this low (CVSS 2.5). Weakness: CWE-125. 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 2 more. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat package: gimp.
Low [CVE-2026-71465] Ad-hoc command limit field allows CLI argument injection into ansible executable
RunAdHocCommand.build_args() appends limit as bare positional (args.append(limit)) instead of using args.extend(['-l', limit]) like RunJob. A limit beginning with - is parsed as an ansible CLI option. Currently limited to short-circuit flags (--version, --help) since injected element displaces required pattern positional. Would escalate if ansible-core ever defaults pattern. Red Hat severity: Low — CVSS 3.1 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N). Weakness: CWE-88. Affected Red Hat products: 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 Ansible Automation Platform 2.6; Red Hat Ansible Automation Platform 2.7. Red Hat fixing advisory: RHSA-2026:71114, RHSA-2026:71113, RHSA-2026:71179, RHSA-2026:71177.
Low [CVE-2026-71464] Schedule and WorkflowJobTemplateNode scm_branch prompt bypasses leading-dash git-argument guard
LaunchConfigurationBaseSerializer.scm_branch has no validate_scm_branch() leading-dash check, unlike Project/JobTemplate/JobLaunch serializers. Schedule and WFJT Node accept --upload-pack=/bin/id as scm_branch. Currently blocked at runtime by jobs.py:1502 ValueError check (defense-in-depth), but the API validation gap means sole reliance on a task-layer guard. Refactoring that guard away would promote this to RCE. Red Hat severity: Low — CVSS 3.1 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N). Weakness: CWE-88. Affected Red Hat products: 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 Ansible Automation Platform 2.6; Red Hat Ansible Automation Platform 2.7. Red Hat fixing advisory: RHSA-2026:71114, RHSA-2026:71113, RHSA-2026:71179, RHSA-2026:71177.
Low [CVE-2026-71463] Notification template Jinja whitelist bypass via conditional gating leaks tracebacks
Notification template Jinja AST whitelist only inspects static Getattr nodes. Dynamic subscripts (job['job'+'_env']) and {% if job.id > 100 %} conditional gating bypass both the AST check and the test-render (stub has small job.id). At runtime, the gated branch executes and exceptions write full tracebacks into notification body, which is POSTed to attacker-controlled webhook URL. Leaks install paths, Python version, source line numbers. Red Hat severity: Low — CVSS 2.7 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-209. Affected Red Hat products: 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 Ansible Automation Platform 2.6; Red Hat Ansible Automation Platform 2.7. Red Hat fixing advisory: RHSA-2026:71114, RHSA-2026:71113, RHSA-2026:71179, RHSA-2026:71177.
Low [CVE-2026-88841] dpkg write_status_file stale cursor causes out-of-bounds read and status file corruption
dpkg write_status_file() stale cursor causes out-of-bounds read and status file corruption. Red Hat rates this low (CVSS 3.3). Weakness: CWE-125. Red Hat lists fixing advisory RHSA-2026:73514 with package busybox-main-1.37.0-9.2.hum1. Affected product named by the advisory: Red Hat Hardened Images.
Low [CVE-2026-91182] Privilege escalation and unauthorized resource modification in gRPC broker
Privilege escalation and unauthorized resource modification in gRPC broker. Red Hat rates this low (CVSS 3.3). Weakness: CWE-639.
Low [CVE-2026-75973] Cross-context authentication mix-up via Jakarta Authentication misconfiguration
Cross-context authentication mix-up via Jakarta Authentication misconfiguration. Red Hat rates this low. Weakness: CWE-305. Red Hat lists fixing advisory RHSA-2026:68257 with package tomcat11-main-11.0.26-0.1.hum1, tomcat10-main-10.1.60-0.1.hum1. Affected product named by the advisory: Red Hat Hardened Images.
Low [CVE-2026-93402] imdtls permitted-peer authorization bypass
imdtls permitted-peer authorization bypass. Red Hat rates this low (CVSS 3.1). Weakness: CWE-287.