MEDIUM 5.0 GitHub
CVE-2026-28385
LXD: SSRF via image import from URL allows internal network probing by authenticated users
## Summary
The LXD image import-from-URL endpoint (`POST /1.0/images` with `source.type=url`) makes server-side HTTP requests to an attacker-supplied URL without any private-IP or loopback blocking. An authenticated user with the `can_create_images` entitlement can force the LXD daemon to connect to internal network addresses (127.0.0.1, RFC1918 ranges, cloud metadata endpoints), enabling port scanning via error-based inference and interaction with internal HTTP services from the daemon's privil
Affected Products
- go/github.com/canonical/lxd < 0.0.0-20261005133302-c4a919f3f4e2
References
- https://github.com/advisories/GHSA-3gq2-x4qg-p4g6
- https://github.com/canonical/lxd/security/advisories/GHSA-3gq2-x4qg-p4g6
- https://nvd.nist.gov/vuln/detail/CVE-2026-28385
- https://github.com/canonical/lxd/pull/18210
This medium severity vulnerability with a CVSS score of 5.0 was published on 2026-11-06 via GitHub. Affected: go/github.com/canonical/lxd < 0.0.0-20261005133302-c4a919f3f4e2.
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