CVE-2026-34179

Received
Published: 09 Apr 2026, 09:22
Last modified:09 Apr 2026, 11:54

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.1 CRITICAL
v3.1 (cve.org)
EPSS Score
0.09% LOW
0% probability
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Apr 2026, 09:22
Published
Vulnerability first disclosed
09 Apr 2026, 11:54
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.09%• Percentile: 25%

Techniques & Countermeasures

  • CWE-915•Improperly Controlled Modification of Dynamically-Determined Object Attributes

    The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified.

Affected Systems

  • canonical•lxd

    ≥ 4.12.0, < 5.0.7 | ≥ 5.1.0, < 5.21.5 | ≥ 6.0.0, < 6.8.0

References (2)