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.
- 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
- None listed
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.
Which versions are affected by CVE-2026-25116?
It affects 1 product.
Products include 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.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
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 Runtipi has a TOTP two-factor authentication bypass via unrestricted brute-force on `/api/auth/verify-totp`
- CVE-2026-24129 Runtipi is Vulnerable to Authenticated Arbitrary Remote Code Execution
- CVE-2026-31881 Runtipi unauthenticated /api/auth/reset-password allows operator account takeover during active reset window
Sources
Also known as GHSA-mwg8-x997-cqw6.