Red Hat Linux Security Advisories & Vulnerabilities
16038 advisories tracked · Red Hat Security Data API · direct feeds checked every minute; rate-limited sources checked less often
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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
Low [CVE-2026-33948] Input validation bypass via embedded NUL bytes allows parser differential attacks
Input validation bypass via embedded NUL bytes allows parser differential attacks. Red Hat rates this low (CVSS 3.8). Weakness: CWE-170. Affected package(s): jq-main. Resolved in Red Hat advisory RHSA-2026:8579 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Advisory [CVE-2024-56581 +7] Kernel Live Patch Security Notice
In the Linux kernel, the following vulnerability has been resolved: btrfs: ref-verify: fix use-after-free after invalid ref action At btrfs_ref_tree_mod() after we successfully inserted the new ref entry (local variable 'ref') into the respective block entry's rbtree (local variable 'be'), if we find an unexpected action of BTRFS_DROP_DELAYED_REF, we error out and free the ref entry without removing it from the block entry's rbtree. In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix oops due to NULL pointer dereference in brcmf_sdiod_sglist_rw() This patch fixes a NULL pointer dereference bug in brcmfmac that occurs when a high 'sd_sgentry_align' value applies (e.g. 512) and a lot of queued SKBs are sent from the pkt queue. In the Linux kernel, the following vulnerability has been resolved: net/smc: fix LGR and link use-after-free issue We encountered a LGR/link use-after-free issue, which manifested as the LGR/link refcnt reaching 0 early and entering the clear process, making resource access unsafe. In the Linux kernel, the following vulnerability has been resolved: usb: cdc-acm: Check control transfer buffer size before access If the first fragment is shorter than struct usb_cdc_notification, we can't calculate an expected_size.
High [CVE-2019-25695] Arbitrary Code Execution via Local Buffer Overflow
Arbitrary Code Execution via Local Buffer Overflow. Red Hat rates this important (CVSS 8.4). Weakness: CWE-787. 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.
Medium [CVE-2026-40386] Denial of Service and information disclosure via integer underflow in MakerNote decoding
Denial of Service and information disclosure via integer underflow in MakerNote decoding. Red Hat rates this moderate (CVSS 4). Weakness: CWE-191. Affected package(s): libexif. Resolved in Red Hat advisory RHSA-2026:26276 — 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 7; Red Hat Enterprise Linux 1.
Medium [CVE-2026-40385] Information disclosure and crashes via integer overflow in Nikon MakerNote handling
Information disclosure and crashes via integer overflow in Nikon MakerNote handling. Red Hat rates this moderate (CVSS 4). Weakness: CWE-190. Affected package(s): libexif. Resolved in Red Hat advisory RHSA-2026:26276 — 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 7.
High [CVE-2026-32146] Gleam compiler: Arbitrary file system modification and potential code execution via improper path validation in git dependency handling.
Gleam compiler: Arbitrary file system modification and potential code execution via improper path validation in git dependency handling.. Red Hat rates this important (CVSS 8.6). Weakness: CWE-22. 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-2026-4154] Remote Code Execution via XPM File Parsing Integer Overflow
Remote Code Execution via XPM File Parsing Integer Overflow. Red Hat rates this important (CVSS 7.8). Weakness: CWE-190. Affected package(s): gimp, gimp:2.8. Resolved in Red Hat advisory RHSA-2026:17533 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: 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; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; and 8 more.
High [CVE-2026-4153] Remote Code Execution via PSP file parsing
Remote Code Execution via PSP file parsing. Red Hat rates this important (CVSS 7.8). Weakness: CWE-120. Affected package(s): gimp, gimp:2.8. Resolved in Red Hat advisory RHSA-2026:17533 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: 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; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; and 8 more.
High [CVE-2026-4152] Remote Code Execution via malicious JP2 file parsing
Remote Code Execution via malicious JP2 file parsing. Red Hat rates this important (CVSS 7.8). Weakness: CWE-131. Affected package(s): gimp. Resolved in Red Hat advisory RHSA-2026:25907 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.6 Extended Update Support; and 1 more.
High [CVE-2026-4151] Remote Code Execution via ANI File Parsing Integer Overflow
Remote Code Execution via ANI File Parsing Integer Overflow. Red Hat rates this important (CVSS 7.8). Weakness: CWE-190. Affected package(s): gimp. Resolved in Red Hat advisory RHSA-2026:16484 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8.
High [CVE-2026-4150] Arbitrary code execution via specially crafted PSD file
Arbitrary code execution via specially crafted PSD file. Red Hat rates this important (CVSS 7.8). Weakness: CWE-190. Affected package(s): gimp, gimp:2.8. Resolved in Red Hat advisory RHSA-2026:17533 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: 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; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; and 9 more.
High [CVE-2026-58379] Heap buffer overflow in read_channel_data()
Heap buffer overflow in read_channel_data(). Red Hat rates this important (CVSS 7.3). Weakness: CWE-122. 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 9.6 Extended Update Support; Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.
Critical [CVE-2026-40175] Remote Code Execution via Prototype Pollution escalation
Remote Code Execution via Prototype Pollution escalation. Red Hat rates this important (CVSS 9). Weakness: CWE-915. Affected package(s): openshift-service-mesh/kiali-rhel9:1776149682, openshift-service-mesh/kiali-ossmc-rhel9:1776151134, rhtas/rhtas-console-rhel9:1776672801, devspaces/dashboard-rhel9:1776795511, openshift-service-mesh/kiali-ossmc-rhel8:1776202125, rhoai/odh-mod-arch-gen-ai-rhel9:1778473763. Resolved in Red Hat advisory RHSA-2026:13826 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Ansible Automation Platform 2.6 for RHEL 9; Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Management for Kubernetes 2.15; Red Hat Advanced Cluster Security for Kubernetes 4.9; and 39 more.
High [CVE-2026-5483] ODH Dashboard Kubernetes Service Account Exposure
ODH Dashboard Kubernetes Service Account Exposure. Red Hat rates this important (CVSS 8.5). Weakness: CWE-201. Affected package(s): rhoai/odh-dashboard-rhel8:1775230902, rhoai/odh-dashboard-rhel9:1775239958, rhoai/odh-dashboard-rhel9:1775234711, rhoai/odh-dashboard-rhel9:1775523049. Resolved in Red Hat advisory RHSA-2026:7404 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat OpenShift AI 2.16; Red Hat OpenShift AI 2.25; Red Hat OpenShift AI 3.2; Red Hat OpenShift AI 3.3.
High [CVE-2026-40217] Arbitrary Code Execution via bytecode rewriting
Arbitrary Code Execution via bytecode rewriting. Red Hat rates this important (CVSS 8.8). Weakness: CWE-94. Affected package(s): rhoai/odh-llama-stack-core-rhel9:1782310008, ansible-automation-platform. Resolved in Red Hat advisory RHSA-2026:24866 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Ansible Automation Platform 2.6; Red Hat OpenShift AI 3.3.
High [CVE-2026-39304] Denial of Service due to TLSv1.3 KeyUpdate memory exhaustion
Denial of Service due to TLSv1.3 KeyUpdate memory exhaustion. 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 Fuse 7.
High [CVE-2026-40200] musl libc: Arbitrary code execution and denial of service via stack-based memory corruption in qsort
musl libc: Arbitrary code execution and denial of service via stack-based memory corruption in qsort. Red Hat rates this important (CVSS 7.8). Weakness: CWE-190. 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.
Medium [CVE-2026-3446] Python base64: Incomplete data decoding due to premature stop at padding
Python base64: Incomplete data decoding due to premature stop at padding. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-1286. Affected package(s): python3. Resolved in Red Hat advisory RHSA-2026:10118 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
Medium [CVE-2026-1502] HTTP header injection via CR/LF in proxy tunnel headers
HTTP header injection via CR/LF in proxy tunnel headers. Red Hat rates this moderate (CVSS 4.5). Weakness: CWE-93. Affected package(s): python3, python3.12, python3.14, rhui5/rhua-rhel9:1779798222, rhui5/installer-rhel9:1779798165. Resolved in Red Hat advisory RHSA-2026:19019 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 8.
Medium [CVE-2026-34481] Denial of Service via invalid JSON output
Denial of Service via invalid JSON output. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-241. Affected package(s): log4j-layout-template-json, offline-knowledge-portal/rhokp-rhel9:1779996999. Resolved in Red Hat advisory RHSA-2026:22619 — update the affected packages (`sudo dnf update`). Affected products named by the advisory: Red Hat Enterprise Linux.
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