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Untriaged
Permalink CVE-2026-34179
9.1 CRITICAL
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): HIGH
  • User interaction (UI): NONE
  • Scope (S): CHANGED
  • Confidentiality impact (C): HIGH
  • Integrity impact (I): HIGH
  • Availability impact (A): HIGH
created 1 week, 2 days 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
  • <6.8.0
  • <5.0.7
  • <5.21.5

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