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CVE-2023-1786

sensitive data exposure in cloud-init logs

MEDIUM
5.5
CVSS Score
Published: April 26, 2023 at 10:23 PM UTC
Updated: June 17, 2026 at 05:28 AM UTC
3 products affected across 2 vendorsFedoraUbuntu LinuxCloud Init

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Sensitive data could be exposed in logs of cloud-init before version 23.1.2. An attacker could use this information to find hashed passwords and possibly escalate their privilege.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cloud Init· Canonical
95%
v < 23.1.2
Affected range stops below 23.1.2, so it looks safe — our inference, not a vendor statement
Ubuntu Linux· Canonicalrubygems
95%
16.0418.0420.0422.0422.1023.04
Fedora· Fedora Projectrpm
95%
38

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

Issue Tracking
Source: [email protected]
https://bugs.launchpad.net/cloud-init/+bug/2013967
Patch
Source: [email protected]
https://github.com/canonical/cloud-init/commit/a378b7e4f47375458651c0972e7cd813f6fe0a6b
Mailing ListThird Party Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/[email protected]/message/ATBJSXPL2IOAD2LDQRKWPLIC7QXS44GZ/
Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://ubuntu.com/security/notices/USN-6042-1

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMcanonical
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-532

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