Improper certificate validation in the HTTPS listener in LXD (Canonical LXD)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.30 % · percentile 23 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- canonical
- NVD status
- Deferred
Description
Improper certificate validation in the HTTPS listener in Canonical LXD 4.0.14, 5.0.10, 5.21.8, 6.9Â before 4.0.15, 5.0.11, 5.21.9, 6.10.1 allows an unauthenticated attacker to authenticate as any trusted client and gain full access to the cluster and managed virtual machines via a crafted certificate chain.
Weaknesses (CWE)
- CWE-295 — Improper Certificate Validation
References
- https://github.com/canonical/lxd/security/advisories/GHSA-99jp-jwmc-65p4
- https://discourse.ubuntu.com/t/security-advisory-critical-vulnerability-found-in-canonical-lxd-and-microcloud/90557
- https://discourse.ubuntu.com/t/lxd-6-10-1-lts-has-been-released/90024
- https://discourse.ubuntu.com/t/lxd-5-21-9-lts-has-been-released/90565/1
- https://discourse.ubuntu.com/t/lxd-5-0-11-lts-has-been-released/90570/1
- https://discourse.ubuntu.com/t/lxd-4-0-15-lts-has-been-released/90571
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | CRITICAL 10.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | canonical |
| CVSS 4.0 | CRITICAL 10.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · security@ubuntu.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-114194
- GCVE · GCVE-0-2026-112816
Affected products
| Product | Versions |
|---|---|
| Canonical · LXD | affected 4.0.14 < 4.0.15 ; affected 5.0.10 < 5.0.11 ; affected 5.21.8 < 5.21.9 ; affected 6.9.0 < 6.10.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |