CVE-2026-28385 json
SSRF via image import from URL allows internal network probing by authenticated users
published 2026-06-26 4 mo ago modified 2026-11-06 2 d ago also GHSA-3gq2-x4qg-p4g6 , EUVD-2026-39805
- cvss
- 5.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/canonical/lxd 0.0.0-20261005133302-c4a919f3f4e2
- Canonical lxd 6.10
- github.com/canonical/lxd@08996fa commit
- github.com/canonical/lxd@4bbdb17 commit
- github.com/canonical/lxd@5976c92 commit
- github.com/canonical/lxd@886fcf5 commit
- github.com/canonical/lxd@c4a919f commit
- github.com/canonical/lxd#18462 pull request
- github.com/canonical/lxd#18210 pull request
- github.com/canonical/lxd/releases/tag/lxd-6.9 release
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/canonical/lxd/security/advisories/GHSA-3gq2-x4qg-p4g6 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N |
| GitHub | 3.1 | 5.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/canonical/lxd | <0.0.0-20261005133302-c4a919f3f4e2 |
0.0.0-20261005133302-c4a919f3f4e2 |
Affected products
- Canonical lxd
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/canonical/lxd/pull/18462
patch, issue-tracking, web
-
github.com
/canonical/lxd/pull/18210
web
-
github.com
/canonical/lxd/commit/08996fa031eebc2bc2f8e27148c2ba24386c01d0
web
-
github.com
/canonical/lxd/commit/4bbdb17ab67010446668e4b00a5175df5b6d55b4
web
-
github.com
/canonical/lxd/commit/5976c92117b79d73437d7fab55e34cb80083edff
web
-
github.com
/canonical/lxd/commit/886fcf5b7686bf59de78e239cec90a69e8fb9c65
web
-
github.com
/canonical/lxd/commit/c4a919f3f4e21249d535d4030a33484313026111
web
-
github.com
/canonical/lxd/security/advisories/GHSA-3gq2-x4qg-p4g6
vdb-entry, vendor-advisory, web, exploit, mitigation
-
nvd.nist.gov
/vuln/detail/CVE-2026-28385
advisory
-
github.com
/canonical/lxd
package
-
github.com
/canonical/lxd/blob/lxd-6.10.0/lxd/image_source_transitional.go
web
-
github.com
/canonical/lxd/blob/lxd-6.9/lxd/daemon_images.go
web
-
github.com
/canonical/lxd/blob/lxd-6.9/lxd/images.go
web
-
github.com
/canonical/lxd/releases/tag/lxd-6.9
web
Sources
- CVE List CVE-2026-28385
- GitHub Advisory GHSA-3gq2-x4qg-p4g6
- NVD CVE-2026-28385
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.