CVE-2026-47273 pam_usb: XPath injection via PAM-supplied identifiers in pam_usb configuration queries

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, pamusb 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...

PT-2026-44086

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 identifie...