What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-06-26 · updated 2026-10-25
• Weakness: CWE-918

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 products

• Canonical LXD: from 4.12 through 6.9

References

• https://github.com/canonical/lxd/pull/18462
• https://github.com/canonical/lxd/security/advisories/GHSA-3gq2-x4qg-p4g6

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