CVE-2026-47274

6.3 Moyenne

Publiée le 27/05/2026 à 22:16 · Modifiée le 17/06/2026 à 12:54 · Analyse NVD reportée · Source : security-advisories@github.com

Description

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.

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Produits concernés

mcdope pam_usb

Scores CVSS

Version	Score	Source	Vecteur
3.1	6.3 Moyenne	security-advisories@github.com	`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N`

Faiblesses (CWE)

CWE-427

Références

https://github.com/mcdope/pam_usb/commit/1ee8745920388df48d001a8e61ba629071557937
https://github.com/mcdope/pam_usb/commit/52a1fd6413b7ffcc1a5b58ce432be42e7bf0dbd0
https://github.com/mcdope/pam_usb/commit/993e73d8bebb1d8e62677388de3402b6ec36b600
https://github.com/mcdope/pam_usb/security/advisories/GHSA-pp29-w28g-r9h9

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories