CVE-2026-112816 json
Improper certificate validation in the HTTPS listener in LXD
published 10d ago modified 9d ago also EUVD-2026-114194
- cvss
- 10.0
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
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 cluster and managed virtual machines via a crafted certificate chain.
Patch / fix
- Canonical LXD 4.0.15, 5.0.11, 5.21.9, 6.10.1
Is CVE-2026-112816 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
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- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 11d ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 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 |
| CNA | 4.0 | 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 |
Affected products
- Canonical LXD
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
github.com
/canonical/lxd/security/advisories/GHSA-99jp-jwmc-65p4
vendor-advisory
-
discourse.ubuntu.com
/t/security-advisory-critical-vulnerability-found-in-canonical-lxd-and-microcloud/90557
vendor-advisory
-
discourse.ubuntu.com
/t/lxd-6-10-1-lts-has-been-released/90024
release-notes
-
discourse.ubuntu.com
/t/lxd-5-21-9-lts-has-been-released/90565/1
release-notes
-
discourse.ubuntu.com
/t/lxd-5-0-11-lts-has-been-released/90570/1
release-notes
-
discourse.ubuntu.com
/t/lxd-4-0-15-lts-has-been-released/90571
release-notes
Sources
- CVE List CVE-2026-112816
- NVD CVE-2026-112816
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