{"id":"CVE-2026-114038","title":"Device-mapper-multipath: device-mapper-multipath: information disclosure via malformed format string","summary":"A flaw was found in device-mapper-multipath. A local user can trigger an out-of-bounds read by sending a command with a format string ending in a trailing percent character to the multipath daemon. This issue can allow the user to expose…","severity":"medium","cvss":5.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","cvssSource":"cna","cwe":["CWE-125"],"vendor":"Red Hat","product":"device-mapper-multipath","affected":["device-mapper-multipath (all versions)","device-mapper-multipath","device-mapper-multipath (all versions)","device-mapper-multipath (all versions)","device-mapper-multipath (all versions)","openshift/ose-rhel-coreos-8 (all versions)","openshift/ose-rhel-coreos-9 (all versions)"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-26T17:34:53.910446Z"},"published":"2026-10-21","updated":"2026-10-26","sourceUpdated":"2026-10-26T17:57:35.460Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-114038","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-114038"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2469787","label":"RHBZ#2469787"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-114038.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-114038"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114038"}],"tags":["cve.org","csaf","vex","red-hat"],"epss":0.00116,"epssPercentile":0.01621,"ingestedAt":"2026-10-21T01:37:08.051Z","slug":"CVE-2026-114038","body":"## Overview\n\nA flaw was found in device-mapper-multipath. A local user can trigger an out-of-bounds read by sending a command with a format string ending in a trailing percent character to the multipath daemon. This issue can allow the user to expose unintended daemon memory, leading to information disclosure, or cause the daemon to crash, resulting in a Denial of Service (DoS).\n\n## Affected\n\n- `device-mapper-multipath (all versions)`\n- `device-mapper-multipath`\n- `device-mapper-multipath (all versions)`\n- `device-mapper-multipath (all versions)`\n- `device-mapper-multipath (all versions)`\n- `openshift/ose-rhel-coreos-8 (all versions)`\n- `openshift/ose-rhel-coreos-9 (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-114038.json)","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":28.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}