{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.9.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e2f30b22cd0715fcde0fc62d6ee3e1ca6370b8a9"
            }
          ],
          "repo": "https://github.com/mcdope/pam_usb",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-qg76-57wq-mpv6"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-362",
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48066.json"
  },
  "details": "pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/log.c contains a process-wide static pointer that is written on every PAM invocation with the address of a stack-local variable. This violates the PAM re-entrancy requirement and creates a data race when the PAM stack is invoked concurrently from multiple threads. This vulnerability is fixed in 0.9.1.",
  "id": "CVE-2026-48066",
  "modified": "2026-08-12T03:51:08.389006Z",
  "published": "2026-05-27T19:57:42.557Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48066.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-qg76-57wq-mpv6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48066"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mcdope/pam_usb/issues/350"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mcdope/pam_usb/issues/55"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "pam_usb: Thread-unsafe static pointer in log.c causes data race under concurrent PAM authentication"
}