XML Injection Affecting mcdope/pam_usb package, versions [,0.9.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (15th percentile)

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  • Snyk IDSNYK-UNMANAGED-MCDOPEPAMUSB-16964297
  • published28 May 2026
  • disclosed27 May 2026
  • creditUnknown

Introduced: 27 May 2026

NewCVE-2026-47273  (opens in a new tab)
CWE-91  (opens in a new tab)

How to fix?

Upgrade mcdope/pam_usb to version 0.9.0 or higher.

Overview

Affected versions of this package are vulnerable to XML Injection via the process that constructs XPath expressions from unvalidated identifiers provided by PAM and USB devices. An attacker can manipulate authentication queries by injecting arbitrary XPath predicates through crafted input.

CVSS Base Scores

version 4.0
version 3.1