{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2025-15576",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-15576",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2026-03-09T11:54:20.630Z",
    "updatedAt": "2026-03-10T18:56:48.250Z",
    "importedAt": "2026-10-24T01:57:24.991Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Jail chroot escape via fd exchange with a different jail",
      "summary": "If two sibling jails are restricted to separate filesystem trees, which is to say that neither of the two jail root directories is an ancestor of the other, jailed processes may nonetheless be able to access a shared directory via a nullfs mount, if the administrator has configured one.\n\nIn this case, cooperating processes in the two jails may establish a connection using a unix domain socket and exchange directory descriptors with each other.\n\nWhen performing a filesystem name lookup, at each step of the lookup, the kernel checks whether the lookup would descend below the jail root of the current process.  If the jail root directory is not encountered, the lookup continues.\n\nIn a configuration where processes in two different jails are able to exchange file descriptors using a unix domain socket, it is possible for a jailed process to receive a directory for a descriptor that is below that process' jail root.  This enables full filesystem access for a jailed process, breaking the chroot.\n\nNote that the system administrator is still responsible for ensuring that an unprivileged user on the jail host is not able to pass directory descriptors to a jailed process, even in a patched kernel.",
      "affected": [
        {
          "vendor": "FreeBSD",
          "product": "FreeBSD",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "14.3-RELEASE",
              "status": "affected",
              "versionType": "release",
              "lessThan": "p9"
            },
            {
              "version": "13.5-RELEASE",
              "status": "affected",
              "versionType": "release",
              "lessThan": "p10"
            }
          ]
        }
      ]
    }
  }
}