CVE-2026-104715

Cifs-utils: mount.cifs credential-file option injection allows local privilege boundary bypass

State
Published
Severity
7.8 High
Published
Oct 16, 2026
Updated
Oct 31, 2026
Reserved
Oct 2, 2026

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Description

A flaw was found in cifs-utils. This flaw allows an unprivileged local user to achieve privilege escalation. When a privileged service mounts a Common Internet File System (CIFS) share using a user-controlled credentials file, input values are not properly sanitized before being assembled into mount options. A local attacker can exploit this vulnerability to inject unauthorized mount options, allowing them to bypass permission checks and execute files with administrative (root) privileges.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hredhat

Weaknesses

  • CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

Affected Products

ProductVersions
Red Hat Enterprise Linux 10Red Hat
    Red Hat Enterprise Linux 6Red Hat
      Red Hat Enterprise Linux 7Red Hat
        Red Hat Enterprise Linux 8Red Hat
          Red Hat Enterprise Linux 9Red Hat
            Red Hat OpenShift Container Platform 4Red Hat
              Red Hat OpenShift Container Platform 4Red Hat
                Red Hat OpenShift Container Platform 5Red Hat

                  References

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