CVE-2025-29906: Finit bundled getty can bypass /bin/login
First published: Tue Apr 29 2025(Updated: )
Finit is a fast init for Linux systems. Versions starting from 3.0-rc1 and prior to version 4.11 bundle an implementation of getty for the `tty` configuration directive that can bypass `/bin/login`, i.e., a user can log in as any user without authentication. This issue has been patched in version 4.11.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Finit | >=3.0-rc1<4.11 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-29906?
CVE-2025-29906 is a critical vulnerability as it allows users to log in without authentication.
How do I fix CVE-2025-29906?
To fix CVE-2025-29906, upgrade Finit to version 4.11 or later.
Which versions of Finit are affected by CVE-2025-29906?
Finit versions starting from 3.0-rc1 up to, but not including, version 4.11 are affected by CVE-2025-29906.
What systems are at risk with CVE-2025-29906?
Linux systems running the affected versions of Finit are at risk due to CVE-2025-29906.
What functionality is compromised by CVE-2025-29906?
CVE-2025-29906 compromises the authentication mechanism by allowing unauthorized access through the getty implementation.
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