{"cve":{"cve_id":"CVE-2026-48792","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00128,"epss_percentile":0.0281,"epss_as_of":"2026-06-23","description":"pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/evdev.c silently ignores EACCES errors when opening /dev/input/event* nodes, causing pusb_has_virtual_input_device() to return 0 (no virtual devices found) even when every open() call failed due to insufficient permissions. The caller in src/local.c cannot distinguish a clean absence of virtual devices from a permission-denied scan, and acts on the false negative by continuing authentication without denying. This vulnerability is fixed in 0.9.1.","published_at":"2026-05-27T19:55:46.392000Z","last_modified_at":null,"cvss_v3_score":4.4,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-390","CWE-693"],"nvd_references":["https://github.com/mcdope/pam_usb/security/advisories/GHSA-pvrg-chgw-x42c","https://github.com/mcdope/pam_usb/issues/351","https://github.com/mcdope/pam_usb/issues/55"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:30:44.057552Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"L","value_label":"Low"},{"metric":"I","name":"Integrity","value":"L","value_label":"Low"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"mcdope","vendor_name":"mcdope","product_slug":"pam-usb","product_name":"pam_usb","version_start":"< 0.9.1","version_start_inclusive":true,"version_end":"< 0.9.1","version_end_inclusive":true,"cpe23_uri":"cve5:mcdope:pam-usb:< 0.9.1:< 0.9.1"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/mcdope/pam_usb/security/advisories/GHSA-pvrg-chgw-x42c","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/mcdope/pam_usb/issues/351","source_type":"MISC","tags":[]},{"url":"https://github.com/mcdope/pam_usb/issues/55","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-05-27T19:55:46.392000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:55:03.830140Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:55:03.830140Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:55:03.830140Z","label":"CVSS score revised","source":"cvelistv5"}]}