CVE-2026-48980
6.3
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Exploitability: 1.0 / Impact: 5.2
Source: security-advisories@github.com (Secondary)
Description
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.
Related CWEs
CWE-454
External Initialization of Trusted Variables or Data Stores
The product initializes critical internal variables or data stores using inputs that can be modified by untrusted actors.
CWE-807
Reliance on Untrusted Inputs in a Security Decision
The product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism.
References (2)
Source: security-advisories@github.com
Source: security-advisories@github.com
Timeline
No history available yet.