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Vulnerability Details CVE-2026-34179

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 30.1%
CVSS Severity
CVSS v3 Score 9.1
Products affected by CVE-2026-34179
  • Canonical » Lxd » Version: 4.12
    cpe:2.3:a:canonical:lxd:4.12
  • Canonical » Lxd » Version: 4.13
    cpe:2.3:a:canonical:lxd:4.13
  • Canonical » Lxd » Version: 4.14
    cpe:2.3:a:canonical:lxd:4.14
  • Canonical » Lxd » Version: 4.15
    cpe:2.3:a:canonical:lxd:4.15
  • Canonical » Lxd » Version: 4.16
    cpe:2.3:a:canonical:lxd:4.16
  • Canonical » Lxd » Version: 4.17
    cpe:2.3:a:canonical:lxd:4.17
  • Canonical » Lxd » Version: 4.18
    cpe:2.3:a:canonical:lxd:4.18
  • Canonical » Lxd » Version: 4.19
    cpe:2.3:a:canonical:lxd:4.19
  • Canonical » Lxd » Version: 4.20
    cpe:2.3:a:canonical:lxd:4.20
  • Canonical » Lxd » Version: 4.21
    cpe:2.3:a:canonical:lxd:4.21
  • Canonical » Lxd » Version: 4.22
    cpe:2.3:a:canonical:lxd:4.22
  • Canonical » Lxd » Version: 4.23
    cpe:2.3:a:canonical:lxd:4.23
  • Canonical » Lxd » Version: 4.24
    cpe:2.3:a:canonical:lxd:4.24
  • Canonical » Lxd » Version: 5.0.0
    cpe:2.3:a:canonical:lxd:5.0.0
  • Canonical » Lxd » Version: 5.0.1
    cpe:2.3:a:canonical:lxd:5.0.1
  • Canonical » Lxd » Version: 5.0.2
    cpe:2.3:a:canonical:lxd:5.0.2
  • Canonical » Lxd » Version: 5.0.3
    cpe:2.3:a:canonical:lxd:5.0.3
  • Canonical » Lxd » Version: 5.0.4
    cpe:2.3:a:canonical:lxd:5.0.4
  • Canonical » Lxd » Version: 5.0.5
    cpe:2.3:a:canonical:lxd:5.0.5
  • Canonical » Lxd » Version: 5.21.0
    cpe:2.3:a:canonical:lxd:5.21.0
  • Canonical » Lxd » Version: 5.21.1
    cpe:2.3:a:canonical:lxd:5.21.1
  • Canonical » Lxd » Version: 5.21.2
    cpe:2.3:a:canonical:lxd:5.21.2
  • Canonical » Lxd » Version: 5.21.3
    cpe:2.3:a:canonical:lxd:5.21.3
  • Canonical » Lxd » Version: 5.21.4
    cpe:2.3:a:canonical:lxd:5.21.4
  • Canonical » Lxd » Version: 6.0
    cpe:2.3:a:canonical:lxd:6.0
  • Canonical » Lxd » Version: 6.1
    cpe:2.3:a:canonical:lxd:6.1
  • Canonical » Lxd » Version: 6.2
    cpe:2.3:a:canonical:lxd:6.2
  • Canonical » Lxd » Version: 6.3
    cpe:2.3:a:canonical:lxd:6.3
  • Canonical » Lxd » Version: 6.4
    cpe:2.3:a:canonical:lxd:6.4
  • Canonical » Lxd » Version: 6.5
    cpe:2.3:a:canonical:lxd:6.5


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