{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-47273 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-47273 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-47273 is a medium-severity code injection vulnerability in mcdope pam_usb, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-47273 and fix it if it is affected.\n\nWhat it is: CVE-2026-47273 is a medium-severity code injection vulnerability in mcdope pam_usb, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-47273 in the wild and no public exploit code.\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-2026-47273/ (Markdown: https://insights.sbomify.com/CVE-2026-47273/index.md)","id":"CVE-2026-47273","markdown":"https://insights.sbomify.com/CVE-2026-47273/index.md","name":"CVE-2026-47273","record":{"aliases":["GHSA-vfj3-5h5v-6g93"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux PAM module","requires_auth":"none","summary":"Attackers can inject XPath predicates via PAM identifiers to bypass hardware authentication, potentially gaining unauthorized access.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-91","name":"XML Injection"}],"description":"pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, pam_usb builds XPath expressions from user-supplied identifiers (PAM username, service name) and device-supplied identifiers (USB device serial, model, vendor) to query /etc/pamusb.conf. These identifiers were not validated for XPath metacharacters, allowing injection of arbitrary XPath predicates. This vulnerability is fixed in 0.9.0.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"pam_usb: XPath injection via PAM-supplied identifiers in pam_usb configuration queries","id":"CVE-2026-47273","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"pam_usb: Uncontrolled search path in pam_usb tools allows privilege escalation via PATH manipulation","id":"CVE-2026-47274"},"packages":[],"prev":{"headline":"pam_usb: OTP pad authentication bypass via missing system pad check and uninitialized RNG buffer","id":"CVE-2026-47272"},"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-28","vendors":["mcdope"]},"summary":"Attackers can inject XPath predicates via PAM identifiers to bypass hardware authentication, potentially gaining unauthorized access.","url":"https://insights.sbomify.com/CVE-2026-47273/"}