CVE-2026-47272

The record

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, the pusb_pad_compare() function in src/pad.c only verified that the user-side pad (~/.pamusb/device.pad) could be read, but did not enforce that the system-side pad (the pad file on the USB device) was also present and readable. If the user-side pad was deleted or unreadable, the function returned a failure that was treated as non-fatal in certain code paths, allowing authentication to succeed without the USB device being verified. A local user can delete their own ~/.pamusb/device.pad to remove the USB device requirement and authenticate without the physical device. This vulnerability is fixed in 0.9.0.

Affected packages

Related vulnerabilities

• CVE-2026-114638 Traefik v3.7.0 before v3.7.14 contains an improper authentication vulnerability in the… CWE-287
• CVE-2026-114639 Traefik 2.11.0 before 2.11.58 and 3.0.0 before 3.7.14 contains an authentication bypass… CWE-287
• CVE-2026-112104 A flaw has been found in eremef bandcamp-player up to 1.8.33-beta. CWE-287
• CVE-2026-107228 The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP… CWE-287
• CVE-2026-86781 The SSL Zen — SSL Certificate Installer & HTTPS Redirects WordPress plugin before 4.7.40… CWE-287
• CVE-2026-14563 The advanced-customized-prompts WordPress plugin through 1.0.1 does not verify the… CWE-287
• CVE-2026-14559 The teddy-bear-customize-addon WordPress plugin through 1.0.5 does not verify a user's… CWE-287
• CVE-2026-88895 CyberPanel before 3.0.5 fails to enforce two-factor authentication on API endpoints… CWE-287