CVE-2026-47273

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Source

https://cve.org/CVERecord?id=CVE-2026-47273

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47273.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-47273

Aliases

GHSA-vfj3-5h5v-6g93

Published

2026-05-27T20:03:39.297Z

Modified

2026-07-08T08:13:38.264370114Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N CVSS Calculator

Summary

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

Details

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 were not validated for XPath metacharacters, allowing injection of arbitrary XPath predicates. This vulnerability is fixed in 0.9.0.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47273.json",
    "cwe_ids": [
        "CWE-91"
    ],
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/mcdope/pam_usb

Affected ranges

Type

GIT

Repo

https://github.com/mcdope/pam_usb

Events

Introduced

Fixed

721fed08a3596cb5b4671ad702f8fdc12dcc7420

Database specific

{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.9.0"
        }
    ]
}

Affected versions

0.*

0.5.0

0.7.1

0.7.2

0.7.3

0.8.3

0.8.4

0.8.7

v0.*

v0.7.0

v0.8.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47273.json"