CVE-2026-44712
pam_usb: Shell injection via device UUID and username in pamusb-conf and pamusb-agent
CVSS Score
8.2
EPSS Score
0.0%
EPSS Percentile
6th
pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, a crafted UUID such as $(id>/tmp/rce) in the config causes root RCE when pamusb-conf --reset-pads is run. A USB device with a crafted filesystem UUID (some controllers allow this) can inject the payload at --add-device time. Also, userName from the XML config is passed to os.system() in pamusb-agent, which invokes a shell. This vulnerability is fixed in 0.8.7.
| CWE | CWE-78 CWE-88 |
| Vendor | mcdope |
| Product | pam_usb |
| Published | May 27, 2026 |
| Last Updated | May 28, 2026 |
Stay Ahead of the Next One
Get instant alerts for mcdope pam_usb
Be the first to know when new high vulnerabilities affecting mcdope pam_usb are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
mcdope / pam_usb
< 0.8.7