CVE-2026-47274

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2026-47274

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47274.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-47274

Aliases

GHSA-pp29-w28g-r9h9

Published

2026-05-27T20:02:38.484Z

Modified

2026-07-08T08:12:37.958721Z

Severity

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

Summary

pam_usb: Uncontrolled search path in pam_usb tools allows privilege escalation via PATH manipulation

Details

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, multiple pamusb helper tools resolved external binaries through the PATH environment variable rather than using absolute paths. An attacker who can influence the process environment during PAM authentication or tool execution could substitute malicious binaries. The affected tools are pamusb-check (src/tmux.c), pamusb-conf (tools/pamusb-conf), and pamusb-keyring-unlock-gnome (tools/pamusb-keyring-unlock-gnome). This vulnerability is fixed in 0.9.0.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47274.json",
    "cwe_ids": [
        "CWE-427"
    ],
    "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

1ee8745920388df48d001a8e61ba629071557937

Fixed

52a1fd6413b7ffcc1a5b58ce432be42e7bf0dbd0

Fixed

993e73d8bebb1d8e62677388de3402b6ec36b600

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-2026-47274.json"