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CVE-2026-49421 unlinkat(2) ignores AT_RESOLVE_BENEATH flag

🗓️ 19 Aug 2026 05:25:43Reported by freebsdType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Linux kernel unlinkat(2) silently drops AT_RESOLVE_BENEATH flag, allowing path traversal and unintended file deletion.

Related
Affected
Refs
[
  {
    "defaultStatus": "unknown",
    "modules": [
      "libalias"
    ],
    "product": "FreeBSD",
    "vendor": "FreeBSD",
    "versions": [
      {
        "status": "affected",
        "versionType": "release",
        "version": "15.1-RELEASE",
        "lessThan": "p1"
      },
      {
        "status": "affected",
        "versionType": "release",
        "version": "15.0-RELEASE",
        "lessThan": "p11"
      },
      {
        "status": "affected",
        "versionType": "release",
        "version": "14.4-RELEASE",
        "lessThan": "p7"
      },
      {
        "status": "affected",
        "versionType": "release",
        "version": "14.3-RELEASE",
        "lessThan": "p16"
      }
    ]
  }
]

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