SSRF in Canonical Lxd
CVE-2026-28385
In Canonical LXD versions 4.12 through 6.9, a Server-Side Request Forgery (SSRF) vulnerability in the image import functionality allows authenticated users with the can_create_images entitlement to interact with internal network infrastructure via the /images endpoint. When importing an image from a URL source, the LXD daemon fails to validate or restrict outbound destination IP addresses, allowing connections to loopback, RFC1918 private ranges, and cloud metadata endpoints. This enables error-based port scanning and unauthorized interaction with internal HTTP services from the daemon's network position.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Canonical Lxd — versions 6.0
Weakness classification (CWE)
References
- github.com/canonical/lxd/security/advisories/GHSA-3gq2-x4qg-p4g6 (Exploit, vendor-advisory, Mitigation, vdb-entry, Vendor Advisory)
- github.com/canonical/lxd/pull/18462 (issue-tracking, Patch, patch, Issue Tracking)
Frequently asked questions
- What is CVE-2026-28385?
- CVE-2026-28385 is a medium-severity vulnerability in Canonical Lxd, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.0/10. Published 2026-06-26.
- How severe is CVE-2026-28385?
- Medium severity. CVSS v3 base score is 5.0 out of 10.