# CVE-2026-29515: MiCode FileExplorer SwiFTP Server Authentication Bypass

> Network attackers can bypass authentication in the embedded FTP server to read, write, and delete files without valid credentials.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Mar 2026
- **Updated:** 28 Jul 2026
- **Also known as:** GHSA-9238-xf4h-w28w

## What is CVE-2026-29515?

CVE-2026-29515 is a critical authentication bypass vulnerability in MiCode FileExplorer, published on 11 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

MiCode FileExplorer contains an authentication bypass vulnerability in the embedded SwiFTP FTP server component that allows network attackers to log in without valid credentials. Attackers can send arbitrary username and password combinations to the PASS command handler, which unconditionally grants access and allows listing, reading, writing, and deleting files exposed by the FTP server. The MiCode/Explorer open source project has reached end-of-life status.

Weakness: CWE-862 (Missing Authorization), CWE-303 (Incorrect Implementation of Authentication Algorithm)

## Which versions are affected by CVE-2026-29515?

It affects 1 product.


Products: Xiaomi Fileexplorer.

## How do I fix CVE-2026-29515?

No fix has been published for CVE-2026-29515 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-29515 being exploited?

There is no known exploitation of CVE-2026-29515 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-29515 and fix it if it is affected.

What it is: CVE-2026-29515 is a critical authentication bypass vulnerability in MiCode FileExplorer, published on 11 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-29515 in the wild and no public exploit code.

Affected product: MiCode FileExplorer. 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-2026-29515/ (Markdown: https://insights.sbomify.com/CVE-2026-29515/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-29515
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-29515
- OSV: https://osv.dev/vulnerability/CVE-2026-29515

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-29515/
Summaries are generated and may contain mistakes; the official description above is the record.