Threat intelligence dashboard
CVE-2026-112816critical

Improper certificate validation in the HTTPS listener in LXD

Improper certificate validation in the HTTPS listener in Canonical LXD 4.0.14, 5.0.10, 5.21.8, 6.9 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.

Risk score

10.0

CVSS 4.0

Vendor
Canonical
Product
LXD
CWE
CWE-295
Published
Oct 30, 2026
Updated
Oct 31, 2026
CISA KEV
Not flagged

Affected products and versions

LXD

Canonical

Platforms: Linux

Version / rangeStatusType
4.0.14 to before 4.0.15affectedsemver
5.0.10 to before 5.0.11affectedsemver
5.21.8 to before 5.21.9affectedsemver
6.9.0 to before 6.10.1affectedsemver

Technical metrics

10.0

CVSS 4.0

Severity
critical
Source
canonical
Vector
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