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Untriaged
Permalink CVE-2026-34179
9.1 CRITICAL
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): High (H)
  • User Interaction (UI): None (N)
  • Scope (S): Changed (C)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): High (H)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): High (H)
created 1 month, 2 weeks ago Activity log
  • Created suggestion 1 month, 2 weeks ago
Update of type field in restricted TLS certificate allows privilege escalation to cluster admin

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 products

lxd
  • <5.21.5
  • <5.0.7
  • <6.8.0

Matching in nixpkgs

pkgs.lxd-ui

Web user interface for LXD

pkgs.lxd-lts

Daemon based on liblxc offering a REST API to manage containers

pkgs.lxd-image-server

Creates and manages a simplestreams lxd image server on top of nginx

pkgs.lxd-unwrapped-lts

Daemon based on liblxc offering a REST API to manage containers

Package maintainers