CVE-2026-48066

MediumCVSS 5.7/10Last modified Jun 17, 2026

Description

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/log.c contains a process-wide static pointer that is written on every PAM invocation with the address of a stack-local variable. This violates the PAM re-entrancy requirement and creates a data race when the PAM stack is invoked concurrently from multiple threads. This vulnerability is fixed in 0.9.1.

Metrics

CVSS 3.1 5.7/10CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Weakness enumeration

CWE-362CWE-476

Affected software

No affected versions have been published.

Timeline

Published
May 27, 2026
Last modified
Jun 17, 2026
NVD status
Deferred

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CVE-2026-48066: Medium severity, CVSS 5.7 | Vulnix