incus: In Canonical LXD versions 4.12 through 6.7, the doCertificateUpdate function in lxd/certificates.go does not validate...
CVE-2026-34179 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-34179, released April 9, 2026. It is not reported as exploited. Patch Radar priority: Urgent.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| govulncheck-vulndb · opensuse-leap 16.0 | 0.0.20260827T195228-160000.1.1 | OPENSUSE-SU-2026:21761-1 | Sep 4, 2026 |
| govulncheck-vulndb · sles 16.0 | 0.0.20260827T195228-160000.1.1 | SUSE-SU-2026:23625-1 | Sep 4, 2026 |
| incus · Debian 13.5 (trixie) | 6.0.4-2+deb13u6 | DEBIAN-CVE-2026-34179 | Apr 9, 2026 |
| incus · Debian 14 | 6.0.6-3 | DEBIAN-CVE-2026-34179 | Apr 9, 2026 |
| lxd · Debian 13.5 (trixie) | 5.0.2+git20231211.1364ae4-9+deb13u5 | DEBIAN-CVE-2026-34179 | Apr 9, 2026 |
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