CVE-2025-23390
CVE-2025-23390 · Fleet doesn’t validate a server’s certificate when connecting through SSH
This page contains facts from public vulnerability sources. Check the original advisory before updating.
A vulnerability has been identified within Fleet where, by default, Fleet will automatically trust a remote server’s certificate when connecting through SSH if the certificate isn’t set in the `known_hosts` file. This could allow the execution of a man-in-the-middle (MitM) attack against Fleet. In case the server that is being connected to has a trusted entry in the known_hosts file, then Fleet will correctly check the authenticity of the presented certificate.
CVSS 6.3 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Affected products and versions
fleet
- Versions
- ≥ 0.9.0-rc.1, < 0.10.12: Affected (semver)
- ≥ 0.11.0, < 0.11.7: Affected (semver)
- ≥ 0.12.0, < 0.12.2: Affected (semver)
Update to 0.10.12; Update to 0.11.7; Update to 0.12.2