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CVE-2026-47273

MEDIUM · CVSS 6.5 EPSS 0.27% Public Exploit

Source: NVD + CISA KEV + EPSS · Published: 2026-05-27 · Last synced: 2026-06-25

CyberRota Analysis

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Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-47273
Severity
MEDIUM
CVSS
6.5
EPSS
0.27%
Linux

Original NVD Description

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, pam_usb builds XPath expressions from user-supplied identifiers (PAM username, service name) and device-supplied identifiers (USB device serial, model, vendor) to query /etc/pamusb.conf. These identifiers were not validated for XPath metacharacters, allowing injection of arbitrary XPath predicates. This vulnerability is fixed in 0.9.0.