{"id":"CVE-2026-112816","title":"Improper certificate validation in the HTTPS listener in LXD","summary":"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…","severity":"critical","cvss":10,"cvssVector":"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","cvssSource":"cna","cwe":["CWE-295"],"vendor":"Canonical","product":"lxd","affected":["lxd >= 4.0.14 < 4.0.15","lxd >= 5.0.10 < 5.0.11","lxd >= 5.21.8 < 5.21.9","lxd >= 6.9.0 < 6.10.1"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-30T00:00:00+00:00"},"exploitAvailable":true,"published":"2026-10-30","updated":"2026-10-31","sourceUpdated":"2026-10-31T03:56:41.468Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112816","references":[{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-99jp-jwmc-65p4"},{"url":"https://discourse.ubuntu.com/t/security-advisory-critical-vulnerability-found-in-canonical-lxd-and-microcloud/90557"},{"url":"https://discourse.ubuntu.com/t/lxd-6-10-1-lts-has-been-released/90024"},{"url":"https://discourse.ubuntu.com/t/lxd-5-21-9-lts-has-been-released/90565/1"},{"url":"https://discourse.ubuntu.com/t/lxd-5-0-11-lts-has-been-released/90570/1"},{"url":"https://discourse.ubuntu.com/t/lxd-4-0-15-lts-has-been-released/90571"}],"tags":["cve.org","exploit-available"],"epss":0.00303,"epssPercentile":0.23251,"exploits":{"github":3,"githubRepos":["https://github.com/dehasoft-tr/cve-2026-112816","https://github.com/MrNarsus/cve-2026-112816-poc","https://github.com/foxcornlab/lxd-scanner"],"checkedAt":"2026-11-05T16:25:07.474Z"},"ingestedAt":"2026-11-05T16:24:31.527Z","slug":"CVE-2026-112816","body":"## Overview\n\nImproper 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.\n\n## Affected\n\n- `lxd >= 4.0.14 < 4.0.15`\n- `lxd >= 5.0.10 < 5.0.11`\n- `lxd >= 5.21.8 < 5.21.9`\n- `lxd >= 6.9.0 < 6.10.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":67,"depthScoreParts":{"impact":55,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}