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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👁 45 Views

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

Related
Affected
Refs
ReporterTitlePublishedViews
Family
freebsd
FreeBSD
FreeBSD -- unlinkat(2) ignores AT_RESOLVE_BENEATH flag
30 Jun 202600:00
–freebsd
bdu_fstec
BDU FSTEC
FreeBSD Kernel unlinkat funlinkat Data Compromise
10 Aug 202600:00
–bdu_fstec
cve
CVE
CVE-2026-49421
19 Aug 202605:25
–cve
euvd
EUVD
EUVD-2026-62243
19 Aug 202605:25
–euvd
freebsd_advisory
FreeBSD Advisory
FreeBSD-SA-26:42.unlinkat
30 Jun 202600:00
–freebsd_advisory
nessus
Tenable Nessus
FreeBSD : FreeBSD -- unlinkat(2) ignores AT_RESOLVE_BENEATH flag (33fd66d1-74e2-11f1-958d-bc241121aa0a)
1 Jul 202600:00
–nessus
mend
Mend
CVE-2026-49421
19 Aug 202605:25
–mend
nvd
NVD
CVE-2026-49421
19 Aug 202606:17
–nvd
packetstormnews
Packet Storm News
FreeBSD Security Advisory - FreeBSD-SA-26:42.unlinkat
30 Jun 202600:00
–packetstormnews
ptsecurity
Positive Technologies
PT-2026-70015
30 Jun 202600:00
–ptsecurity
Rows per page
[
  {
    "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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