CVE-2026-48792

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{"affected": [{"affectedData": [{"product": "pam_usb", "vendor": "mcdope", "versions": [{"status": "affected", "version": "< 0.9.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "pam_usb proporciona autenticaci\u00f3n de hardware para Linux utilizando medios extra\u00edbles comunes. Antes de 0.9.1, src/evdev.c ignora silenciosamente los errores EACCES al abrir los nodos /dev/input/event, lo que provoca que pusb_has_virtual_input_device() devuelva 0 (no se encontraron dispositivos virtuales) incluso cuando cada llamada a open() fall\u00f3 debido a permisos insuficientes. El llamador en src/local.c no puede distinguir una ausencia limpia de dispositivos virtuales de un escaneo con permisos denegados, y act\u00faa sobre el falso negativo al continuar la autenticaci\u00f3n sin denegar. Esta vulnerabilidad est\u00e1 corregida en 0.9.1."}], "id": "CVE-2026-48792", "lastModified": "2026-10-26T11:10:00.157", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48792", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-28T13:27:27.036665Z", "version": "2.0.3"}}]}, "published": "2026-05-27T20:16:41.077", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/mcdope/pam_usb/issues/351"}, {"source": "security-advisories@github.com", "url": "https://github.com/mcdope/pam_usb/issues/55"}, {"source": "security-advisories@github.com", "url": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-pvrg-chgw-x42c"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-390"}, {"lang": "en", "value": "CWE-693"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.9.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "pam_usb", "source": "cna", "vendor": "mcdope"}, "product": "pam_usb", "vendor": "mcdope"}], "created": "2026-05-27T22:15:25.995513+00:00", "updated": "2026-05-29T15:50:14.795668+00:00", "vendors": ["mcdope", "mcdope$PRODUCT$pam_usb"]}