medium6.3
CVE-2026-48980
pam_usb provides hardware authentication for Linux using removable media.
Impact
pam_usb provides hardware authentication for Linux using removable media. In versions prior to 0.9.2, getenv() environment variables XRDP_SESSION, DISPLAY and TMUX allow environment variable injection into local-check logic. These environment variables influence whether a current session is local or remote, and a PAM module that runs in the context of setuid binaries (sudo, su), getenv() returns attacker-controlled values whenever the process environment has been manipulated by a local user. This issue has been fixed in version 0.9.2.
Affected products
| Product | Affected versions |
|---|---|
| Versions | before 0.9.2 |
Versions were read from the advisory text. No structured product data has been published for this record yet.