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Medium 5.1Published Oct 21, 2026

CVE-2026-114038Device-mapper-multipath: device-mapper-multipath: information disclosure via malformed format string

Updated under an hour ago ()

Does this affect you?

It affects Red Hat Enterprise Linux 10 and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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).

CVSS
5.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Weakness (CWE)
CWE-125
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
redhat
NVD analysis
Received
Record last updated
Oct 21, 2026
First seen by InfoSec Signals
Oct 21, 2026

Affected products

Affected products
10
CNA record
4
CNA record

References

  • vdb-entry, x-refsource-redhat
  • issue-tracking, x-refsource-redhat

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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