Use of Blocking Code in Single-threaded, Non-blocking Context Affecting multipath-tools package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.16% (5th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-MULTIPATHTOOLS-19687848
  • published12 Sept 2026
  • disclosed11 Sept 2026

Introduced: 11 Sep 2026

CVE-2026-89329  (opens in a new tab)
CWE-1322  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable multipath-tools.

NVD Description

Note: Versions mentioned in the description apply only to the upstream multipath-tools package and not the multipath-tools package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

A flaw was found in multipathd. A local attacker with access to the multipathd UNIX control socket can exploit this vulnerability by sending valid commands and then ceasing to read replies. This action can cause the multipathd listener thread to block, leading to a Denial of Service (DoS) where legitimate Inter-Process Communication (IPC) operations may hang or time out. This issue does not result in privilege escalation, arbitrary code execution, or impact data confidentiality or integrity.

CVSS Base Scores

version 3.1