CVE-2026-48980
mediumpriority · track · 0EPSS 0.002 · 7 %ileEUEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://github.com/mcdope/pam_usb/releasesPatchcnnvd
- https://github.com/mcdope/pam_usb/releases/tag/0.9.2cnnvd
- https://github.com/mcdope/pam_usb/security/advisories/GHSA-qr83-mf3h-fvqrcnnvd
- https://github.com/mcdope/pam_usb/releases/tag/0.9.2enisa_euvd
- https://github.com/mcdope/pam_usb/security/advisories/GHSA-qr83-mf3h-fvqrenisa_euvd
- https://github.com/mcdope/pam_usb/releases/tag/0.9.2nvd
- https://github.com/mcdope/pam_usb/security/advisories/GHSA-qr83-mf3h-fvqrnvd
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