CVE-2022-2084: sensitive data exposure in cloud-init logs

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-04-19 · updated 2026-06-17
Weakness: CWE-532

Description

Sensitive data could be exposed in world readable logs of cloud-init before version 22.3 when schema failures are reported. This leak could include hashed passwords.

Affected products

Canonical Ltd. cloud-init: before 22.3 — fixed in 22.3
Canonical Ubuntu Linux: 18.04, 20.04, 21.10, 22.04

How to fix

Upgrade to a fixed version: Canonical Ltd. cloud-init 22.3. Check the vendor advisory for mitigations.

References

https://github.com/canonical/cloud-init/commit/4d467b14363d800b2185b89790d57871f11ea88c
https://ubuntu.com/security/notices/USN-5496-1
https://github.com/canonical/cloud-init/commit/4d467b14363d800b2185b89790d57871f11ea88c
https://ubuntu.com/security/notices/USN-5496-1

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