CVE-2026-34179
Published:April 09, 2026
Updated:April 20, 2026
In Canonical LXD versions 4.12 through 6.7, the doCertificateUpdate function in lxd/certificates.go does not validate the Type field when handling PUT/PATCH requests to /1.0/certificates/{fingerprint} for restricted TLS certificate users, allowing a remote authenticated attacker to escalate privileges to cluster admin.
Affected Packages
https://github.com/canonical/lxd.git (GITHUB):
Affected version(s) >=lxd-0.1 <lxd-5.0.7Fix Suggestion:
Update to version lxd-5.0.7https://github.com/canonical/lxd.git (GITHUB):
Affected version(s) >=lxd-5.1 <lxd-5.21.5Fix Suggestion:
Update to version lxd-5.21.5https://github.com/canonical/lxd.git (GITHUB):
Affected version(s) >=lxd-6.1 <lxd-6.8Fix Suggestion:
Update to version lxd-6.8Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
9.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improperly Controlled Modification of Dynamically-Determined Object Attributes
EPSS
Base Score:
0.11
