CVE-2026-44709

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{"affected": [{"affectedData": [{"product": "pam_usb", "vendor": "mcdope", "versions": [{"status": "affected", "version": "< 0.8.7"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, pamusb-pinentry reads the PINENTRY_FALLBACK_APP environment variable and executes it directly without any validation. Any process that can set environment variables before pamusb-pinentry is invoked can point PINENTRY_FALLBACK_APP at an arbitrary binary or script and have it executed with the privileges of the pam_usb tool chain. This vulnerability is fixed in 0.8.7."}, {"lang": "es", "value": "pam_usb proporciona autenticaci\u00f3n de hardware para Linux utilizando medios extra\u00edbles ordinarios. Antes de 0.8.7, pamusb-pinentry lee la variable de entorno PINENTRY_FALLBACK_APP y la ejecuta directamente sin ninguna validaci\u00f3n. Cualquier proceso que pueda establecer variables de entorno antes de que se invoque pamusb-pinentry puede apuntar PINENTRY_FALLBACK_APP a un binario o script arbitrario y hacer que se ejecute con los privilegios de la cadena de herramientas de pam_usb. Esta vulnerabilidad est\u00e1 corregida en 0.8.7."}], "id": "CVE-2026-44709", "lastModified": "2026-10-25T23:10:00.167", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "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:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-44709", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-02T17:58:32.295600Z", "version": "2.0.3"}}]}, "published": "2026-05-27T21:16:17.807", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-jxrj-q67x-wr4c"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-jxrj-q67x-wr4c"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.8.7)"}}], "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": "2026-05-27T22:30:35.625708+00:00", "updated": "2026-05-29T15:49:54.739413+00:00", "vendors": ["mcdope", "mcdope$PRODUCT$pam_usb"]}