CVE-2026-48066
Medium · 5.7CVSS
5.7
EPSS
0.1%
Published
May 27, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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