# CVE-2026-21118: Missing authorization in Samsung Mobile Devices

> Local attackers can bypass access controls to read files in scoped storage on Samsung mobile devices.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N`)
- **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:** No
- **Published:** 12 Oct 2026
- **Updated:** 16 Oct 2026
- **Also known as:** GHSA-h75j-53h7-rrjc

## What is CVE-2026-21118?

CVE-2026-21118 is a medium-severity missing authorization vulnerability in Samsung Mobile Devices, published on 12 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper access control in DownloadProvider prior to SMR Oct-2026 Release 1 allows local attackers to access files in scoped storage.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-21118?


## How do I fix CVE-2026-21118?

No fix has been published for CVE-2026-21118 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-21118 being exploited?

There is no known exploitation of CVE-2026-21118 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-21118 and fix it if it is affected.

What it is: CVE-2026-21118 is a medium-severity missing authorization vulnerability in Samsung Mobile Devices, published on 12 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-2026-21118 in the wild and no public exploit code.

Affected product: Samsung Mobile Devices. 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-2026-21118/ (Markdown: https://insights.sbomify.com/CVE-2026-21118/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-21118
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-21118
- OSV: https://osv.dev/vulnerability/CVE-2026-21118

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-21118/
Summaries are generated and may contain mistakes; the official description above is the record.