{"id":"CVE-2026-89480","title":"kernel: nvme-tcp: reject a read that transferred too few bytes (CVE-2026-89480)","summary":"A flaw was found in the NVMe-TCP implementation of the Linux kernel. This vulnerability occurs when the system completes a data read request even if the connected controller transfers fewer bytes than expected. As a result, the user applic…","severity":"high","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"vendor","cwe":"CWE-130","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 8","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-09-11","updated":"2026-09-18","sourceUpdated":"2026-09-18T09:19:05+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89480.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89480.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89480"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532095"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89480"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89480"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89480.mbox"},{"url":"https://git.kernel.org/stable/c/a5c1bb0fb1bab2f24a081339c145870697f6d220"},{"url":"https://git.kernel.org/stable/c/aa107e3a68f4af177d60f2d87679e7f67179a36c"},{"url":"https://git.kernel.org/stable/c/fca3ebb63e5c82561cd9934365dcc0d068008006"},{"url":"https://git.kernel.org/stable/c/99066cf9bba175f610ceb61a35f6fc9fbc33ff65"},{"url":"https://git.kernel.org/stable/c/8a02ad98798fd01f51f648c1fdd8f3c9d07195d3"},{"url":"https://git.kernel.org/stable/c/832a685efeb5d925ee7d30011d2dbe45f81447a3"},{"url":"https://git.kernel.org/stable/c/7fa3f73f6c8ddc5f0425b50fb2a626a782ef7d12"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00415,"epssPercentile":0.35368,"scores":{"vendor":7,"cna":7.5},"ingestedAt":"2026-09-14T15:23:07.453Z","slug":"CVE-2026-89480","body":"## Overview\n\nA flaw was found in the NVMe-TCP implementation of the Linux kernel. This vulnerability occurs when the system completes a data read request even if the connected controller transfers fewer bytes than expected. As a result, the user application receives a mix of legitimate and stale data, potentially leading to information disclosure or data integrity issues.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89480.json)\n\n**kernel: nvme-tcp: reject a read that transferred too few bytes** — rated Important by Red Hat. Released 2026-09-11, updated 2026-09-18.\n\nAffected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\nNo fix planned:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\nNot affected:\n\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n\n## Remediation\n\nAffected","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":206964,"id":"CVE-2026-89480","ts":1789749722162,"field":"cvss","old":"7.5","new":"7"},{"seq":198023,"id":"CVE-2026-89480","ts":1789384321430,"field":"cvss","old":"7.4","new":"7.5"},{"seq":183528,"id":"CVE-2026-89480","ts":1789356675746,"field":"cvss","old":"7.5","new":"7.4"},{"seq":153260,"id":"CVE-2026-89480","ts":1789285349780,"field":"cvss","old":null,"new":"7.5"},{"seq":153259,"id":"CVE-2026-89480","ts":1789285349780,"field":"severity","old":"none","new":"high"},{"seq":147726,"id":"CVE-2026-89480","ts":1789270212053,"field":"cvss","old":null,"new":"7.4"},{"seq":147725,"id":"CVE-2026-89480","ts":1789270212053,"field":"severity","old":"none","new":"high"},{"seq":109474,"id":"CVE-2026-89480","ts":1789183732055,"field":"cvss","old":null,"new":"7.4"},{"seq":109473,"id":"CVE-2026-89480","ts":1789183732055,"field":"severity","old":"none","new":"high"}]}