CVE-2019-0816
cloud-init: extra ssh keys added to authorized_keys on the Azure platform
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · March 5, 2019
Updated · November 22, 2025
Description
A security feature bypass exists in Azure SSH Keypairs, due to a change in the provisioning logic for some Linux images that use cloud-init, aka 'Azure SSH Keypairs Security Feature Bypass Vulnerability'.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
See steps from https://support.microsoft.com/en-us/help/4491476/extraneous-ssh-public-keys-added-to-authorized-keys-file-on-linux-vm
CVSS / CWE
CVSS 3.0 · 5.4CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE-285 · Improper Authorization