{"api_version":"1","generated_at":"2026-05-28T16:29:42+00:00","cve":"CVE-2026-44709","urls":{"html":"https://cve.report/CVE-2026-44709","api":"https://cve.report/api/cve/CVE-2026-44709.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-44709","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-44709"},"summary":{"title":"pam_usb: PINENTRY_FALLBACK_APP environment variable allows arbitrary command execution","description":"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. 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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.","Type":"Description","Title":"pam_usb: PINENTRY_FALLBACK_APP environment variable allows arbit"}]}}}