Vulnerability in Mcdope Pam_usb
CVE-2026-48983
pam_usb provides hardware authentication for Linux using ordinary removable media. In versions prior to 0.9.2, a symlink race condition exists in per-device and per-user pad directory creation. pam_usb uses a check-then-act pattern: it cal…
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L.
Affected products
- Mcdope Pam_usb — versions < 0.9.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-48983?
- CVE-2026-48983 is a medium-severity vulnerability in Mcdope Pam_usb, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 5.8/10. Published 2026-06-18.
- How severe is CVE-2026-48983?
- Medium severity. CVSS v3 base score is 5.8 out of 10.