{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44709 exists.","fix":"No fix has been published for CVE-2026-44709 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-44709 is a high-severity command injection vulnerability in mcdope pam_usb, published on 27 May 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-44709 and fix it if it is affected.\n\nWhat it is: CVE-2026-44709 is a high-severity command injection vulnerability in mcdope pam_usb, published on 27 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44709 exists.\n\nAffected product: mcdope pam_usb. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-44709/ (Markdown: https://insights.sbomify.com/CVE-2026-44709/index.md)","id":"CVE-2026-44709","markdown":"https://insights.sbomify.com/CVE-2026-44709/index.md","name":"CVE-2026-44709","record":{"aliases":["GHSA-jxrj-q67x-wr4c"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux PAM module","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary commands with elevated privileges by manipulating the PINENTRY_FALLBACK_APP environment variable in pam_usb.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"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. This vulnerability is fixed in 0.8.7.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"pam_usb: PINENTRY_FALLBACK_APP environment variable allows arbitrary command execution","id":"CVE-2026-44709","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"pam_usb: NULL pointer dereference from UDisks device fields causes PAM crash and login denial-of-service","id":"CVE-2026-44710"},"packages":[],"prev":{"headline":"Mistune Math Plugin XSS Escape Bypass","id":"CVE-2026-44708"},"products":["pam_usb"],"published":"2026-05-27","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-06-02","vendors":["mcdope"]},"summary":"Attackers can execute arbitrary commands with elevated privileges by manipulating the PINENTRY_FALLBACK_APP environment variable in pam_usb.","url":"https://insights.sbomify.com/CVE-2026-44709/"}