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.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44712.json",
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-78",
"CWE-88"
]
}"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44712.json"
[
{
"target": {
"file": "src/version.h"
},
"signature_type": "Line",
"digest": {
"line_hashes": [
"274006941693340921109215064742773008771"
],
"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2026-44712-9a35920a",
"signature_version": "v1",
"source": "https://github.com/mcdope/pam_usb/commit/987f4f6ddf0a8c75ddd5f05b19b863220efe9005"
}
]
"2026-07-17T19:05:51Z"