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CVE-2026-27456 util-linux: TOCTOU Race Condition in util-linux mount(8) - Loop Device Setup

🗓️ 03 Apr 2026 21:23:00Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 19 Views

Time of check time of use race in util-linux mount lets an unprivileged user mount as root via loop device by replacing the source with a symlink.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-27456
3 Apr 202621:23
attackerkb
AlpineLinux
CVE-2026-27456
3 Apr 202621:23
alpinelinux
CBLMariner
CVE-2026-27456 affecting package util-linux for versions less than 2.40.2-4
9 May 202603:31
cbl_mariner
Circl
CVE-2026-27456
14 Apr 202613:10
circl
CNNVD
util-linux 安全漏洞
3 Apr 202600:00
cnnvd
CVE
CVE-2026-27456
3 Apr 202621:23
cve
Debian CVE
CVE-2026-27456
3 Apr 202621:23
debiancve
Tenable Nessus
EulerOS 2.0 SP13 : util-linux (EulerOS-SA-2026-2317)
10 Jun 202600:00
nessus
Tenable Nessus
EulerOS 2.0 SP13 : util-linux (EulerOS-SA-2026-2360)
10 Jun 202600:00
nessus
Tenable Nessus
EulerOS Virtualization 2.13.1 : util-linux (EulerOS-SA-2026-2391)
12 Jun 202600:00
nessus
Rows per page
[
  {
    "vendor": "util-linux",
    "product": "util-linux",
    "versions": [
      {
        "version": "< 2.41.4",
        "status": "affected"
      }
    ]
  }
]

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