CVE Explorer
CVE-2026-47272
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 with
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1
Preserved source conflicts
No provider value was silently selected as the winner.
cwe · 2 assertions
{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:264a245d8d66f59770b704467d55d4c427856352fda01270a45db3bf43c41237 · sha256:af5258a31a4696df… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-908","description":"CWE-908: Use of Uninitialized Resource","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:264a245d8d66f59770b704467d55d4c427856352fda01270a45db3bf43c41237 · sha256:af5258a31a4696df… · /containers/cna/problemTypes/1/descriptions/0
Affected products and versions
1 source assertion{"product":"pam_usb","vendor":"mcdope","versions":[{"status":"affected","version":"< 0.9.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:264a245d8d66f59770b704467d55d4c427856352fda01270a45db3bf43c41237 · sha256:af5258a31a4696df… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:264a245d8d66f59770b704467d55d4c427856352fda01270a45db3bf43c41237 · sha256:af5258a31a4696df… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
2 source assertions{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:264a245d8d66f59770b704467d55d4c427856352fda01270a45db3bf43c41237 · sha256:af5258a31a4696df… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-908","description":"CWE-908: Use of Uninitialized Resource","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:264a245d8d66f59770b704467d55d4c427856352fda01270a45db3bf43c41237 · sha256:af5258a31a4696df… · /containers/cna/problemTypes/1/descriptions/0
Source references
1 source assertion{"name":"https://github.com/mcdope/pam_usb/security/advisories/GHSA-vx6f-rrqr-j87c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/mcdope/pam_usb/security/advisories/GHSA-vx6f-rrqr-j87c"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:264a245d8d66f59770b704467d55d4c427856352fda01270a45db3bf43c41237 · sha256:af5258a31a4696df… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.