---
id: CVE-2026-104715
title: >-
  Cifs-utils: mount.cifs credential-file option injection allows local privilege
  boundary bypass
summary: >-
  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 valu…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-88
vendor: Red Hat
product: cifs-utils
affected:
  - cifs-utils (all versions)
  - cifs-utils
  - cifs-utils (all versions)
  - cifs-utils (all versions)
  - cifs-utils (all versions)
  - openshift/ose-rhel-coreos-8 (all versions)
  - openshift/ose-rhel-coreos-9 (all versions)
exploitAvailable: true
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T18:08:57.714Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-104715'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-104715'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2545023'
    label: RHBZ#2545023
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-104715.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-104715'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104715'
tags:
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
epss: 0.00139
epssPercentile: 0.02907
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/M3aCulpa/CVE-2026-104715'
  checkedAt: '2026-10-16T18:43:43.182Z'
ingestedAt: '2026-10-16T07:01:11.475Z'
---

## Overview

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.

## Affected

- `cifs-utils (all versions)`
- `cifs-utils`
- `cifs-utils (all versions)`
- `cifs-utils (all versions)`
- `cifs-utils (all versions)`
- `openshift/ose-rhel-coreos-8 (all versions)`
- `openshift/ose-rhel-coreos-9 (all versions)`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-104715.json)