{"id":"CVE-2026-93006","aliases":[],"cve":{"records":[{"id":"CVE-2026-93006","source":"redhat","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-17T14:35:34.562Z","published":"2026-10-29T12:47:23.431Z","modified":"2026-10-30T01:16:56.129Z"}],"publishers":[{"name":"redhat","role":"CNA","organizationId":"53f830b8-0a3f-465b-8143-3b8a9948e749","modified":"2026-10-30T01:16:56.129Z"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-93006","tags":["vdb-entry","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536075","tags":["issue-tracking","x_refsource_REDHAT"],"source":"redhat"}],"weaknesses":[{"id":"CWE-672","description":"Operation on a Resource after Expiration or Release","source":"redhat"}],"applicability":[],"prioritization":[]},"title":"Dnsmasq: dnsmasq: tftp prefetch cache keyed on stale heap pointer serves wrong file content","titleSource":"redhat","descriptionSource":"redhat","description":"A flaw was found in dnsmasq. The TFTP server can serve the wrong file contents because a recently used transfer cache is not invalidated when a transfer finishes. An attacker on the local network who can request a TFTP file may cause a later client to receive previously cached data instead of the requested file. In PXE network-boot environments this can substitute attacker-chosen boot content for a victim machine.","score":6.8,"severity":"medium","published":"2026-10-29T12:47:23.431Z","modified":"2026-10-30T01:16:56.129Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Red Hat","name":"Red Hat Ceph Storage 9","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:ceph_storage:9"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 10","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 6","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:6"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 7","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:7"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:8"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 9","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:9"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 5","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:5"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 5","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:5"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat OpenStack Platform 13 (Queens)","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openstack:13"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"},{"vendor":"Red Hat","name":"Red Hat OpenStack Platform 18.0","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openstack:18.0"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"}],"remediation":[{"text":"The following measures reduce risk:\n\n1. If TFTP is not required, do not enable it. Remove --enable-tftp from the dnsmasq configuration.\n2. If TFTP is required, restrict it with --tftp-interface=<interface> and avoid running TFTP-only instances that serve untrusted clients on the same network.\n3. Compile without TFTP support using COPTS=-DNO_TFTP if TFTP is not needed.","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"}],"references":["https://access.redhat.com/security/cve/CVE-2026-93006","https://bugzilla.redhat.com/show_bug.cgi?id=2536075"],"sources":[{"name":"CVE","id":"CVE-2026-93006","modified":"2026-10-30T01:16:56.129Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"}],"assessments":[{"source":"redhat","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":6.8}],"sourceAffected":[],"observedAt":"2026-10-30T02:46:48.990Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T10:20:31.211Z"},"coverage":[{"source":"NVD","status":"no-result","checkedAt":"2026-10-29T13:00:38.527Z","attemptedAt":"2026-10-29T13:00:38.527Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-29T13:00:38.813Z","attemptedAt":"2026-10-29T13:00:38.813Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-29T13:00:38.633Z","attemptedAt":"2026-10-29T13:00:38.633Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-29T13:00:38.261Z","attemptedAt":"2026-10-29T13:00:38.261Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-112791","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112791","modified":"Oct 29, 2026, 12:47:23 PM","score":6.8,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","checkedAt":"2026-10-29T13:00:38.633Z"}],"aiSummary":{"text":"A flaw in dnsmasq's TFTP server can serve wrong file contents due to a stale heap pointer. An attacker on the local network may cause a client to receive previously cached data. The vulnerability affects Red Hat products including Enterprise Linux and OpenShift Container Platform.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:18:38.475Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-93006"}]}}