# CVE-2026-104715: Cifs-utils: mount.cifs credential-file option injection allows local privilege boundary bypass > Local attackers can inject mount options via credential files to bypass permissions and execute code with root privileges. - **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Any signed-in user - **Attackable:** Local or same network only - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 16 Oct 2026 - **Updated:** 21 Oct 2026 - **Also known as:** ALPINE-CVE-2026-104715, AZL-109782, CLSA-2026-1792790974, DEBIAN-CVE-2026-104715, GHSA-pvh7-9hhh-pfhr, MGASA-2026-0556, SUSE-SU-2026:24372-1, SUSE-SU-2026:4819-1, SUSE-SU-2026:4897-1, UBUNTU-CVE-2026-104715, USN-8938-1 ## What is CVE-2026-104715? CVE-2026-104715 is a high-severity command injection vulnerability in Red Hat Enterprise Linux 10, published on 16 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim. ### Official 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. Weakness: CWE-88 (Improper Neutralization of Argument Delimiters in a Command) ## Which versions are affected by CVE-2026-104715? | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `cifs-utils` | SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise Micro 5.3 | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise Micro 5.4 | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise Micro 5.5 | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise Module for Basesystem 15 SP7 | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 12 SP5-LTSS | All versions | 6.9-13.32.2 | | `cifs-utils` | SUSE:Linux Enterprise Server 15 SP4-LTSS | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 15 SP5-LTSS | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 15 SP6-LTSS | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 | All versions | 6.9-13.32.2 | | `cifs-utils` | SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Enterprise Server for SAP Applications 15 SP6 | All versions | 6.15-150400.3.27.1 | | `cifs-utils` | SUSE:Linux Micro 6.0 | All versions | 7.0-159998.1.1 | ## How do I fix CVE-2026-104715? Apply the vendor's patch. ## Is CVE-2026-104715 being exploited? There is no known exploitation of CVE-2026-104715 in the wild and no public exploit code. Public exploit code: - CVE-2026-104715: cifs-utils credentials-file option injection (local root) (github_poc): https://github.com/M3aCulpa/CVE-2026-104715 ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2026-104715 and fix it if it is affected. What it is: CVE-2026-104715 is a high-severity command injection vulnerability in Red Hat Enterprise Linux 10, published on 16 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim. Exploitation: There is no known exploitation of CVE-2026-104715 in the wild and no public exploit code. Affected product: Red Hat Enterprise Linux 10. No package-level version data is available, so check the vendor advisory linked from the reference page. Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2026-104715/ (Markdown: https://insights.sbomify.com/CVE-2026-104715/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-104715 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-104715 - OSV: https://osv.dev/vulnerability/CVE-2026-104715 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-104715/ Summaries are generated and may contain mistakes; the official description above is the record.