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CVE-2026-114038

Fixed in a distro release EPSS <1%CVSS 5.1

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 unintended daemon memory, leading to information disclosure, or cause the daemon to crash, resulting in a Denial of Service (DoS).

Published 2026-10-21 · CVE record · OSV

Products: 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

Distro releases

ReleasePackageFixed in
Debian 12multipath-toolsno fix
Debian 13multipath-toolsno fix
Debian 14multipath-tools0.15.1-1
Ubuntu 14.04 LTSmultipath-toolsno fix
Ubuntu 16.04 LTSmultipath-toolsno fix
Ubuntu 18.04 LTSmultipath-toolsno fix
Ubuntu 20.04 LTSmultipath-toolsno fix
Ubuntu 22.04 LTSmultipath-toolsno fix
Ubuntu 24.04 LTSmultipath-toolsno fix
Ubuntu 26.04 LTSmultipath-toolsno fix
Ubuntu 26.10multipath-toolsno fix