# CVE-2026-25116: Runtipi vulnerable to unauthenticated docker-compose.yml Overwrite via Path Traversal

> Unauthenticated path traversal allows overwriting docker-compose.yml, leading to remote code execution and host compromise upon restart.

- **Severity:** High 7.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 29 Jan 2026
- **Updated:** 2 Feb 2026
- **Also known as:** GHSA-mwg8-x997-cqw6

## What is CVE-2026-25116?

CVE-2026-25116 is a high-severity path traversal vulnerability in runtipi, published on 29 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Runtipi is a personal homeserver orchestrator. Starting in version 4.5.0 and prior to version 4.7.2, an unauthenticated Path Traversal vulnerability in the `UserConfigController` allows any remote user to overwrite the system's `docker-compose.yml` configuration file. By exploiting insecure URN parsing, an attacker can replace the primary stack configuration with a malicious one, resulting in full Remote Code Execution (RCE) and host filesystem compromise the next time the instance is restarted by the operator. Version 4.7.2 fixes the vulnerability.

Weakness: CWE-306 (Missing Authentication for Critical Functionality), CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-25116?

It affects 1 product.


Products: Runtipi Runtipi.

## How do I fix CVE-2026-25116?

No fix has been published for CVE-2026-25116 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-25116 being exploited?

There is no known exploitation of CVE-2026-25116 in the wild and no public exploit code.

## Other vulnerabilities in runtipi

- [CVE-2026-32729](https://insights.sbomify.com/CVE-2026-32729/): Runtipi has a TOTP two-factor authentication bypass via unrestricted brute-force on `/api/auth/verify-totp` (high 8.1)
- [CVE-2026-24129](https://insights.sbomify.com/CVE-2026-24129/): Runtipi is Vulnerable to Authenticated Arbitrary Remote Code Execution (high 8.1)
- [CVE-2026-31881](https://insights.sbomify.com/CVE-2026-31881/): Runtipi unauthenticated /api/auth/reset-password allows operator account takeover during active reset window (high 7.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-25116 and fix it if it is affected.

What it is: CVE-2026-25116 is a high-severity path traversal vulnerability in runtipi, published on 29 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-25116 in the wild and no public exploit code.

Affected product: runtipi. 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-2026-25116/ (Markdown: https://insights.sbomify.com/CVE-2026-25116/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25116
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25116
- OSV: https://osv.dev/vulnerability/CVE-2026-25116

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-25116/
Summaries are generated and may contain mistakes; the official description above is the record.