Vulnerability · Published Jun 26, 2026 · Assigned by canonical

CVE-2026-28385SSRF via image import from URL allows internal network probing by authenticated users

Medium 5.0

In plain English

A medium-severity server-side request forgery in lxd from Canonical. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.0Medium

Exploit odds (30 days)0.3%top 79.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	lxd	no fix listed	DEBIAN-CVE-2026-28385
Debian:13	lxd	no fix listed	DEBIAN-CVE-2026-28385
Go	github.com/canonical/lxd	0.0.0-20261005133302-c4a919f3f4e2	GHSA-3gq2-x4qg-p4g6

Affected products (as reported)

Vendor	Product	Versions
Canonical	lxd	6.0 – before 6.10

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

References

SSRF via image import from URL allows internal network probing by authenticated users vdb-entry, vendor-advisory
doc: update guide to hardening security for LXD patch, issue-tracking