High severity7.1NVD Advisory· Published Aug 1, 2018· Updated Jun 17, 2026
CVE-2018-10896
CVE-2018-10896
Description
The default cloud-init configuration, in cloud-init 0.6.2 and newer, included "ssh_deletekeys: 0", disabling cloud-init's deletion of ssh host keys. In some environments, this could lead to instances created by cloning a golden master or template system, sharing ssh host keys, and being able to impersonate one another or conduct man-in-the-middle attacks.
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Affected products
2- Range: >=0.6.2
- Canonical/cloud-initv5Range: 0.6.2
Patches
Vulnerability mechanics
References
3- bugs.launchpad.net/cloud-init/+bug/1781094nvdPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
News mentions
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