What is CVE-2026-47273?

CVE-2026-47273 is a medium-severity vulnerability in Mcdope Pam_usb, classified under XML Injection (Blind XPath Injection). CVSS score: 6.5/10. Published 2026-05-27.

How severe is CVE-2026-47273?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XPath Injection in Mcdope Pam_usb

CVE-2026-47273

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 ser…

EPSS: 0.001 (17.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N.

Affected products

Mcdope Pam_usb — versions < 0.9.0

Weakness classification (CWE)

CWE-91 — XML Injection (Blind XPath Injection)

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-47273?: CVE-2026-47273 is a medium-severity vulnerability in Mcdope Pam_usb, classified under XML Injection (Blind XPath Injection). CVSS score: 6.5/10. Published 2026-05-27.
How severe is CVE-2026-47273?: Medium severity. CVSS v3 base score is 6.5 out of 10.