{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.9.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "721fed08a3596cb5b4671ad702f8fdc12dcc7420"
            }
          ],
          "repo": "https://github.com/mcdope/pam_usb",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-vfj3-5h5v-6g93"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-91"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47273.json"
  },
  "details": "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.",
  "id": "CVE-2026-47273",
  "modified": "2026-07-08T05:38:17.165069344Z",
  "published": "2026-05-27T20:03:39.297Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47273.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-vfj3-5h5v-6g93"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47273"
    },
    {
      "type": "FIX",
      "url": "https://github.com/mcdope/pam_usb/commit/721fed08a3596cb5b4671ad702f8fdc12dcc7420"
    },
    {
      "type": "FIX",
      "url": "https://github.com/mcdope/pam_usb/pull/311"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "pam_usb: XPath injection via PAM-supplied identifiers in pam_usb configuration queries"
}