ByteOS Network

NVD Vulnerability Details :

CVE-2026-47274

Deferred

Source-security-advisories@github.com

Published At-27 May, 2026 | 20:16

Updated At-28 May, 2026 | 13:57

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, multiple pam_usb 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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	6.3	MEDIUM	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Type: Secondary

Version: 3.1

Base score: 6.3

Base severity: MEDIUM

Vector:

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE ID	Type	Source
CWE-427	Primary	security-advisories@github.com

CWE ID: CWE-427

Type: Primary

Source: security-advisories@github.com

References

Hyperlink	Source	Resource
https://github.com/mcdope/pam_usb/commit/1ee8745920388df48d001a8e61ba629071557937	security-advisories@github.com	N/A
https://github.com/mcdope/pam_usb/commit/52a1fd6413b7ffcc1a5b58ce432be42e7bf0dbd0	security-advisories@github.com	N/A
https://github.com/mcdope/pam_usb/commit/993e73d8bebb1d8e62677388de3402b6ec36b600	security-advisories@github.com	N/A
https://github.com/mcdope/pam_usb/security/advisories/GHSA-pp29-w28g-r9h9	security-advisories@github.com	N/A