# CVE-2026-21001: Path traversal in Galaxy Store

> A local attacker can exploit a path traversal flaw in the Galaxy Store to create files with elevated privileges, potentially leading to privilege escalation.

- **Severity:** Medium 5.9 (`CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Mar 2026
- **Updated:** 16 Mar 2026
- **Also known as:** GHSA-3rvw-93mm-hp67

## What is CVE-2026-21001?

CVE-2026-21001 is a medium-severity path traversal vulnerability in Samsung Mobile Galaxy Store, published on 16 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Path traversal in Galaxy Store prior to version 4.6.03.8 allows local attacker to create file with Galaxy Store privilege.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-21001?

It affects 1 product.


Products: Samsung Galaxy Store.

## How do I fix CVE-2026-21001?

No fix has been published for CVE-2026-21001 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-21001 being exploited?

There is no known exploitation of CVE-2026-21001 in the wild and no public exploit code.

Public exploit code:

- https://github.com/George0Papasotiriou/CVE-2026-21001-WebAssembly-Linear-Memory-OOB-via-Table-Index-Confusion (github_poc): https://github.com/George0Papasotiriou/CVE-2026-21001-WebAssembly-Linear-Memory-OOB-via-Table-Index-Confusion

## Other vulnerabilities in Samsung Mobile Galaxy Store

- [CVE-2023-21433](https://insights.sbomify.com/CVE-2023-21433/): Missing authorization in Galaxy Store (high 7.8)
- [CVE-2022-33708](https://insights.sbomify.com/CVE-2022-33708/): Privilege escalation in Galaxy Store (high 7.8)
- [CVE-2022-33709](https://insights.sbomify.com/CVE-2022-33709/): Improper input validation vulnerability in ApexPackageInstaller in Galaxy Store prior to version 4.5.41.8 allows local attackers to launch a (high 7.8)
- [CVE-2022-33710](https://insights.sbomify.com/CVE-2022-33710/): Privilege escalation in Galaxy Store (high 7.8)
- [CVE-2023-42580](https://insights.sbomify.com/CVE-2023-42580/): Code injection in Galaxy Store (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-21001 and fix it if it is affected.

What it is: CVE-2026-21001 is a medium-severity path traversal vulnerability in Samsung Mobile Galaxy Store, published on 16 Mar 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-2026-21001 in the wild and no public exploit code.

Affected product: Samsung Mobile Galaxy Store. 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-2026-21001/ (Markdown: https://insights.sbomify.com/CVE-2026-21001/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-21001
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-21001
- OSV: https://osv.dev/vulnerability/CVE-2026-21001

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-21001/
Summaries are generated and may contain mistakes; the official description above is the record.